List of the Top AI Reasoning Models for Vercel AI Gateway in 2026 - Page 2

Claude Opus 4.8 is Anthropic’s latest frontier AI model engineered to deliver advanced coding intelligence, reasoning capabilities, autonomous workflows, and enterprise-grade collaboration for developers, technical teams, and organizations building AI-powered systems. As the successor to Claude Opus 4.7, the model introduces improvements across software engineering, agentic execution, practical knowledge work, benchmark performance, and alignment behavior while retaining the same standard pricing structure. Claude Opus 4.8 is specifically optimized for complex coding tasks, large-scale workflow orchestration, long-running automation processes, and advanced reasoning scenarios where reliability, transparency, and contextual judgment are critical. One of the model’s defining advancements is its improved honesty and uncertainty awareness, making it significantly less likely to produce unsupported conclusions or overlook defects in generated code, reasoning chains, and operational outputs. Anthropic’s alignment assessments also report stronger prosocial behavior, lower rates of deceptive or unsafe actions, and improved adherence to user intent compared to earlier Opus releases. The release introduces configurable effort controls that allow users to determine how much computational reasoning the model applies to a task, enabling flexible tradeoffs between speed, token consumption, and response depth depending on workflow complexity. Claude Opus 4.8 also powers new “dynamic workflows” functionality in Claude Code, where the model can coordinate hundreds of parallel AI subagents during a single session to execute large-scale software engineering operations such as repository-wide migrations, testing workflows, and multi-step automation tasks. Anthropic further expanded the platform with lower-cost fast mode processing, enabling the model to operate at significantly higher speeds while remaining more affordable than previous high-performance configurations.

Claude Opus 4.7 represents a major step forward in AI model development, focusing on advanced reasoning, coding, and enterprise-level task execution. It improves significantly over Opus 4.6 by delivering stronger performance on complex and high-effort software engineering challenges. The model is particularly effective at managing long-running processes, maintaining consistency, and producing reliable outputs over time. Its enhanced instruction-following capabilities ensure that it interprets prompts more literally and executes tasks with greater precision. Opus 4.7 also features advanced self-checking mechanisms, enabling it to validate its own responses before completion. A major highlight is its improved multimodal support, allowing it to process high-resolution images and extract fine visual details. This capability is especially useful for tasks like analyzing technical screenshots, interpreting diagrams, and supporting computer-based workflows. The model produces high-quality professional outputs, including refined documents, presentations, and UI designs that meet business standards. It also demonstrates strong performance across industries such as finance, legal services, and data analysis. Enhanced memory capabilities allow it to retain important context across sessions, making it more efficient for ongoing projects. Opus 4.7 includes safety and alignment improvements, with systems in place to detect and block potentially harmful or restricted use cases. It introduces new controls for balancing reasoning depth and response speed, giving users flexibility based on task complexity. Widely accessible through APIs and major cloud platforms, Opus 4.7 is designed to support scalable, high-performance AI applications for modern enterprises.

GPT-6.1 Sol is OpenAI's upgraded Sol model for developers and professionals who need advanced reasoning and agentic capabilities without the higher cost of GPT-6 Astra. It is designed for coding, professional knowledge work, computer use, scientific research, factual question answering, and multi-step business workflows. OpenAI describes GPT-6.1 Sol as approaching GPT-6 Astra's intelligence across several important workloads while charging one-fifth of Astra's standard input and output token prices. On DeepSWE v1.1, which evaluates long-horizon software engineering in real codebases, GPT-6.1 Sol matches GPT-6 Astra at approximately one-fifth of the cost and exceeds GPT-6 Sol's best score by 6.4 percentage points. Its professional-work capabilities include understanding complex PDFs containing tables, charts, diagrams, and fine-print details across fields such as finance, healthcare, and legal work. On AutomationBench, GPT-6.1 Sol improves on GPT-6 Sol by 4.8 percentage points at the same reasoning setting and scores 2.2 points above Opus 5.5 at medium reasoning effort. Computer-use performance also advances significantly, with GPT-6.1 Sol outperforming GPT-6 Sol by seven percentage points on the OSWorld 2.0 offline set at maximum reasoning effort and coming within 2.1 points of GPT-6 Astra. For scientific research, the model can work with code and terminal tools on workflows involving data analysis, simulations, model fitting, and theorem proving, more than doubling GPT-6 Sol's Terminal-Bench Science 0.1 score at maximum effort. OpenAI also reports improved factual accuracy, including a reduction in the factual-error rate from 11.4% with GPT-6 Sol to 7.7% with GPT-6.1 Sol at low reasoning effort on its deliberately difficult factuality evaluation.

Gemini 3.8 Flash distinguishes itself as Google's premier model for Flash, featuring significant upgrades over version 3.7 in crucial areas like software engineering, agent-based functions, and complex multi-step reasoning across specialized disciplines. Tailored for extensive coding tasks and autonomous agents, it effectively tackles intricate engineering problems with a thorough approach, ensuring the essential reliability needed for critical enterprise autonomy in niche knowledge sectors. This model shines particularly in quantitative and professional fields that require advanced analysis and reporting, as well as in multi-step reasoning endeavors that encompass STEM, humanities, and other professional sectors. The enhancements it presents stem from a core design strategy: Gemini 3.8 Flash places greater emphasis on demanding tasks by performing additional reasoning steps and employing tools in an iterative fashion, thereby enhancing its overall performance. When operating at increased effort levels, it may utilize more tokens to produce superior results, while developers are also presented with the option to dial down to lower effort levels for different outcomes. This adaptability not only supports a wide range of project requirements but also allows for customized applications based on specific goals and desired results. Consequently, users can engage with the model in ways that align closely with their individual project demands, maximizing its utility across various contexts.

Grok 4.3 is a next-generation AI model from xAI that expands on the capabilities of the Grok 4 series with improved reasoning, real-time intelligence, and automation features. It is designed to handle complex, multi-step tasks such as coding, research, and decision-making with greater accuracy and consistency. The model integrates real-time data from the web and X, allowing it to provide up-to-date answers and insights. Grok 4.3 supports multimodal functionality, enabling it to process and generate content across text, images, and other formats. It operates within the SuperGrok Heavy tier, which offers enhanced compute power and access to advanced features. The model includes long-context capabilities, allowing it to analyze large datasets and extended conversations effectively. It also supports tool use and integrations, enabling it to interact with external systems and automate workflows. Grok 4.3 benefits from the multi-agent “heavy” configuration, which improves performance on complex reasoning tasks. It is optimized for speed, responsiveness, and real-time interaction. The model can be used for a wide range of applications, including software development, research, and business analysis. It builds on Grok’s foundation as an AI assistant integrated with modern platforms and environments. The system continues to evolve with ongoing updates and feature enhancements. Overall, Grok 4.3 represents a powerful AI solution for users seeking real-time intelligence and advanced automation capabilities.

GLM-5.1 marks the newest evolution in Z.ai’s GLM lineup, designed as a state-of-the-art AI model focused on agents, specifically for tasks involving coding, logical reasoning, and overseeing long-term processes. This version builds on the foundation set by GLM-5, which utilizes a Mixture-of-Experts (MoE) framework to maximize performance while keeping inference costs low, supporting a broader vision of making weight models available to developers. A key feature of GLM-5.1 is its ability to promote agentic behavior, enabling it to plan, execute, and enhance multi-step tasks rather than just responding to single prompts. The model is meticulously crafted to handle complex workflows, such as troubleshooting code, navigating repositories, and conducting sequential tasks, all while preserving context over extended periods. Compared to earlier models, GLM-5.1 provides improved reliability during prolonged interactions, ensuring consistency throughout longer sessions and reducing errors in multi-step reasoning tasks. Furthermore, this advancement represents a significant step forward in the realm of AI, especially in its proficiency for managing intricate task workflows with ease. With its innovative features, GLM-5.1 sets a new standard for what agent-focused AI can achieve in practical applications.

Qwen3.6-Max-Preview is a cutting-edge language model designed to elevate intelligence, adhere to instructions, and enhance the effectiveness of real-world agents within the Qwen ecosystem. Building on the Qwen3 series, this version features improved world knowledge, better alignment with user directives, and significant upgrades in coding capabilities for agents, enabling the model to proficiently handle complex, multi-step challenges and software development tasks. It is specifically tailored for situations that demand sophisticated reasoning and execution, allowing for an interactive approach that goes beyond simple response generation to include tool usage, management of extensive contexts, and structured problem-solving across disciplines such as coding, research, and business operations. The framework continues to reflect Qwen's dedication to creating large, efficient models capable of managing extensive context windows while ensuring dependable performance across multilingual and knowledge-driven initiatives. This innovative architecture not only aims to boost productivity but also fosters creativity in a wide range of applications, paving the way for future advancements in technology and collaboration.

Kimi K2.6 is a cutting-edge agentic AI model developed by Moonshot AI, designed to improve practical application, programming efficiency, and complex reasoning abilities beyond its forerunners, K2 and K2.5. Utilizing a Mixture-of-Experts framework, this model embodies the multimodal, agent-centric principles of the Kimi series, seamlessly combining language understanding, coding skills, and tool application into a unified system capable of planning and executing sophisticated workflows. It boasts advanced reasoning capabilities and superior agent planning, allowing it to break down tasks, coordinate multiple tools, and address challenges involving numerous files or steps with heightened accuracy and efficiency. Furthermore, it excels in tool-calling functions, ensuring a reliable connection with external platforms like web searches or APIs, while incorporating built-in validation systems to confirm the correctness of execution formats. Significantly, Kimi K2.6 marks a transformative advancement in the AI landscape, establishing new benchmarks for the intricacy and dependability of automated processes, and paving the way for future innovations in the field.

Trinity Large Thinking is a cutting-edge open-source reasoning framework developed by Arcee AI, specifically designed for tackling complex, multi-step problems and workflows that involve autonomous agents requiring extensive planning and diverse tool utilization. With an impressive sparse Mixture-of-Experts architecture, it encompasses around 400 billion parameters, activating about 13 billion for each token, which not only boosts its operational efficiency but also fortifies its reasoning capabilities across various tasks, such as mathematical computations, code generation, and thorough analysis. A significant innovation of this model is its capacity for extended chain-of-thought reasoning, enabling it to generate intermediate "thinking traces" prior to presenting final results, which significantly enhances accuracy and dependability in intricate scenarios. Additionally, Trinity Large Thinking supports a generous context window of up to 262K tokens, which empowers it to effectively handle lengthy documents, maintain context during extended interactions, and operate smoothly within continuous agent loops. This exemplary design showcases a firm commitment to advancing the limits of automated reasoning systems, paving the way for more sophisticated applications in the future. As technology evolves, the potential for further enhancements in reasoning models like this one remains vast and exciting.

GPT-5.5 Pro represents a new class of AI designed to transform how work gets done across digital environments. It combines advanced reasoning, tool usage, and task execution capabilities to handle complex, multi-step workflows with minimal human intervention. The model excels in areas such as software engineering, data analysis, business operations, and scientific research, where it can plan tasks, gather information, test solutions, and refine outputs continuously. It supports creating applications, generating reports, building spreadsheets, and navigating software systems as part of a complete workflow. A key capability is its integration with workspace agents—custom AI agents that can be built once and deployed across teams to automate entire processes. These agents can run tasks on schedules, interact with tools like CRM systems, messaging platforms, and document editors, and keep workflows moving without constant supervision. Organizations can define permissions, approval checkpoints, and monitoring to maintain control over automated processes. GPT-5.5 Pro also enhances collaboration by enabling teams to standardize workflows and scale best practices across the organization. With enterprise-grade security and governance, it ensures safe deployment in complex environments. Its ability to persist through ambiguity and long tasks makes it highly effective for execution-heavy work. By reducing manual intervention and increasing speed, it allows teams to focus on higher-value activities. Ultimately, GPT-5.5 Pro enables businesses and professionals to operate at a significantly higher level of productivity and efficiency.

Sakana Fugu is a multi-agent AI system that operates like one model while coordinating many underlying expert models behind a single API. The platform is designed to deliver frontier-level performance without forcing users to depend on one model provider or manually manage several separate AI tools. Fugu dynamically chooses which agents should participate in each task and coordinates them through learned collaboration patterns. This approach allows the system to handle complex work such as coding, reasoning, scientific problem solving, code review, security assessment, literature analysis, patent research, and autonomous research workflows. Sakana Fugu is grounded in research on learned orchestration, including TRINITY and the Conductor, which explore how AI systems can route tasks, assign roles, and coordinate communication among multiple agents. Users can access the system through an OpenAI-compatible API and choose between Fugu and Fugu Ultra depending on their workload. Fugu is built for everyday coding, chatbot, review, and productivity use cases where strong performance and lower latency are both important. Fugu Ultra uses a deeper pool of expert agents to improve quality on harder tasks such as Kaggle competitions, paper reproduction, cybersecurity analysis, and technical investigations. Organizations can control which agents, providers, or models are allowed in the pool to meet privacy, data handling, compliance, and procurement needs. The platform offers pay-as-you-go and subscription pricing options, with Fugu Ultra priced separately for input, output, and cached input tokens. Sakana Fugu gives developers, researchers, and enterprises a way to plug multi-agent intelligence into existing workflows while maintaining flexibility, control, and stronger performance on demanding tasks.

MiMo-V2.6-Pro-UltraSpeed is an accelerated deployment of Xiaomi MiMo’s MiMo-V2.6-Pro model for workloads where response speed is a major requirement. Xiaomi describes it as providing the same model quality as MiMo-V2.6-Pro while producing output at up to 20 times the standard model’s speed. It retains the Pro model’s natively omnimodal architecture and its support for software engineering, agentic automation, computer use, visual reasoning, and research workflows. In coding applications, the model can support complex development tasks, terminal workflows, debugging, automation, and other multi-step engineering work. Its visual and multimodal capabilities extend to frontend design, presentation creation, 3D scene generation, Blender modeling, and interaction with image and video tools. The MiMo-V2.6 family can also coordinate multiple agents, inspect rendered outputs, and iteratively refine generated results using visual feedback. In embodied simulation scenarios, the underlying model can interpret multi-view camera feeds and make continuous decisions based on changing visual information. Research-oriented use cases for MiMo-V2.6-Pro include literature review, scientific hypothesis generation, computational tool use, materials research, and formal mathematical proof work. UltraSpeed is specifically optimized for situations where these capabilities need to be delivered with substantially lower generation latency. Xiaomi makes MiMo-V2.6-Pro-UltraSpeed available in MiMo Desktop and through its API platform for programmatic use. The model is designed for AI developers, agent builders, interactive applications, and high-throughput systems that need MiMo-V2.6-Pro-level capabilities with significantly faster output.

Qwen3.6-Plus is a cutting-edge AI model developed by Alibaba Cloud, designed to enable real-world intelligent agents, advanced coding workflows, and multimodal reasoning. It represents a major evolution in the Qwen series, offering enhanced performance across coding, reasoning, and tool-based tasks. With a default 1 million token context window, the model can process extremely large inputs and maintain context across long interactions. It excels in agentic coding, supporting tasks such as debugging, terminal operations, and large-scale repository management. The model integrates reasoning, memory, and execution capabilities, allowing it to function as a highly autonomous and reliable AI agent. Qwen3.6-Plus also features strong multimodal capabilities, enabling it to analyze images, videos, documents, and UI elements for deeper understanding and action. It supports real-world applications such as workflow automation, visual reasoning, and interactive task execution. Developers can access the model via API and integrate it with tools like OpenClaw, Qwen Code, and other coding assistants. Features like preserved reasoning context improve performance in complex, multi-step tasks and reduce redundant processing. The model is optimized for enterprise use, offering stability, scalability, and high accuracy across diverse domains. It also supports multilingual environments, making it suitable for global applications. Overall, Qwen3.6-Plus provides a powerful foundation for building next-generation AI agents capable of perception, reasoning, and action.

Xiaomi MiMo-V2.5-Pro is a cutting-edge open-source AI model built to handle complex reasoning, coding, and long-horizon tasks with high efficiency. It features a Mixture-of-Experts architecture with over one trillion total parameters and a large active parameter set for optimized performance. The model supports an extended context window of up to one million tokens, enabling it to process large amounts of information in a single workflow. It is designed for advanced agentic capabilities, allowing it to autonomously complete multi-step tasks over extended periods. MiMo-V2.5-Pro has demonstrated strong results in benchmarks related to software engineering, reasoning, and general AI performance. It is capable of building complete applications, optimizing engineering systems, and solving complex technical challenges. The model uses hybrid attention mechanisms to balance performance and efficiency across long contexts. It is also optimized for token efficiency, reducing resource usage while maintaining high-quality outputs. The model can integrate with development tools and frameworks to support real-world use cases. Xiaomi has open-sourced MiMo-V2.5-Pro, providing developers with access to its architecture, weights, and deployment tools. This allows organizations to customize and scale the model for their specific needs. Its ability to handle long workflows makes it suitable for tasks that require sustained reasoning and coordination. By combining scalability, efficiency, and advanced intelligence, MiMo-V2.5-Pro represents a significant advancement in open-source AI technology.

Xiaomi MiMo-V2.5 is a powerful open-source AI model designed to deliver advanced agentic capabilities alongside native multimodal understanding. It can process and reason across text, images, and audio within a unified system, enabling more complex and realistic interactions. The model is built using a sparse Mixture-of-Experts architecture with hundreds of billions of parameters, allowing it to scale efficiently while maintaining strong performance. It supports an extended context window of up to one million tokens, making it suitable for long-horizon tasks and detailed workflows. MiMo-V2.5 incorporates dedicated visual and audio encoders that enhance its ability to interpret and analyze multimodal inputs. It is capable of performing a wide range of tasks, including coding, reasoning, document analysis, and multimedia understanding. The model demonstrates strong benchmark performance across coding, reasoning, and multimodal evaluation tests. It is optimized for token efficiency, reducing computational cost while maintaining high-quality outputs. MiMo-V2.5 is designed to integrate with development tools and frameworks for real-world use cases. Xiaomi has released the model as open source, providing access to its weights, tokenizer, and architecture. This allows developers to customize and deploy the model for specific applications. Its ability to combine perception and reasoning makes it suitable for advanced AI workflows. By unifying multimodality and agentic intelligence, MiMo-V2.5 represents a significant advancement in open-source AI technology.

The latest OpenAI API offering, GPT-5.6 Sol Ultrafast, is designed to function up to 14 times faster than the Standard processing version, providing state-of-the-art intelligence for applications and tasks where every second matters. Powered by Cerebras technology, it can generate up to 750 output tokens per second, allowing sophisticated reasoning to occur at real-time speeds without requiring a smaller or specialized model. This service is specifically crafted for corporate settings where quick responses can greatly improve the performance of AI systems. Its versatility includes applications in incident response, enabling rapid analysis of logs, code changes, traces, and engineering reports during critical outages; financial research and security, where it can quickly assess changing market signals and spot fraudulent transactions; and customer support, where it can effectively resolve complex issues in real-time conversations. Additionally, in the e-commerce sector, it shines at managing product inquiries, checking inventory levels, and personalizing product recommendations to enrich the user experience. By adopting this innovative service, organizations can anticipate enhanced efficiency and operational effectiveness, ultimately leading to better overall performance in their respective fields. The integration of such advanced AI tools not only streamlines processes but also empowers teams to focus on higher-value tasks.

Gemini 3.8 Flash Cyber is the latest and most sophisticated cybersecurity framework developed by Google, delivering unparalleled efficiency in detecting vulnerabilities and automating patch management with impressive speed for quick iterations. Designed specifically for reliable defenders, it is made available through the Fairwind Program. On CyberGym, a well-respected benchmark in the industry for vulnerability detection, this model demonstrates outstanding capabilities in autonomous vulnerability identification, surpassing both its predecessor, Gemini 3.5 Flash Cyber, and larger frontier models. Additionally, Google evaluated its performance on an internal benchmark that encompasses intricate codebases across 20 different programming languages, attaining a remarkable success rate exceeding 70% in identifying a range of vulnerabilities. Unlike many other models that prioritize offensive tactics, Gemini 3.8 Flash Cyber centers on the critical task of remediation, equipping defenders with sophisticated tools that bolster their defenses against cyber threats. This emphasis on proactive measures signifies an important evolution in the field of cybersecurity, shifting the focus from merely exploiting weaknesses to actively protecting systems and data. As cyber threats continue to evolve, the need for such a defensive strategy becomes increasingly vital for organizations seeking to enhance their security posture.

Claude Fable 5.5 is a possible future addition to Anthropic's premium Claude Fable model line, but Anthropic has not officially announced a model under that name as of September 30, 2026. The company's current model catalog identifies Claude Fable 5.1 as the latest Fable model, alongside the newer Claude Opus 5.5 and Claude Sonnet 5.5. Anthropic positions Fable 5.1 for demanding reasoning and long-horizon agentic work requiring its highest-end model capabilities. The model provides a 1-million-token context window and supports outputs of up to 128,000 tokens. Fable 5.1 uses adaptive thinking that is always enabled and defaults to a high effort setting for more intensive reasoning. It accepts text and images as input and generates text output, with Anthropic listing June 2026 as both its reliable knowledge cutoff and training-data cutoff. Fable 5.1 costs $10 per million input tokens and $50 per million output tokens, with cache reads priced at $0.25 per million tokens. It is officially supported through the Claude API, Amazon Bedrock, Google Cloud, Microsoft Foundry, and Claude Platform on AWS. Anthropic's September releases have expanded the Claude 5.5 generation with Opus 5.5 and Sonnet 5.5, but its official model catalog has not similarly replaced Fable 5.1 with Fable 5.5. Anthropic's Trust Center likewise lists documentation for Claude Mythos 5.1 and Fable 5.1 as well as Opus 5.5 and Sonnet 5.5, without documentation for a Fable 5.5 model. Consequently, claims about Claude Fable 5.5's performance, benchmarks, context limits, pricing, capabilities, or release date should be considered unconfirmed until Anthropic publishes official information.