Hy3 vs. Claude Sonnet 4.6

The Hy3 preview showcases Tencent Hy's latest and most sophisticated model within the Hy series, boasting an impressive 295 billion parameters arranged in a Mixture-of-Experts framework, with 21 billion parameters activated and a remarkable 3.8 billion allocated to the MTP layer, all while supporting a vast context window of up to 256,000 tokens. This innovative model marks a significant milestone as it utilizes Tencent Hy's newly enhanced infrastructure, which is specifically designed to improve its effectiveness in various practical applications such as complex reasoning, following directives, contextual learning, coding assignments, and overall inference skills. By blending swift and comprehensive cognitive processing, it can provide clear responses for basic questions while also allowing for detailed analysis of complex mathematical, programming, and logical problems. The model is engineered to demonstrate extensive capabilities in comprehending lengthy contexts, following instructions accurately, utilizing tools effectively, and executing agent workflows with precision, with evaluations performed not only against traditional benchmarks but also in realistic business and development scenarios. Additionally, its versatile design allows for effective adaptation across a wide array of situations, significantly expanding its potential for use in numerous applications, thus making it a vital tool in advancing the field.

Claude Sonnet 4.6 is the latest evolution in Anthropic’s Sonnet model family, offering major advancements in coding, reasoning, computer interaction, and knowledge-intensive workflows. Designed as a full upgrade rather than an incremental update, it improves consistency, instruction following, and multi-step task completion across a broad range of professional applications. The model introduces a 1 million token context window in beta, enabling users to analyze entire codebases, long contracts, research archives, or complex planning documents in one cohesive session. Developers with early access reported a strong preference for Sonnet 4.6 over Sonnet 4.5 and even favored it over Opus 4.5 in many real-world coding tasks. Users highlighted its reduced overengineering tendencies, improved follow-through, and lower incidence of hallucinations during extended sessions. A major enhancement is its improved computer-use capability, allowing it to operate traditional software environments by interacting with graphical interfaces much like a human user. On benchmarks such as OSWorld, Sonnet models have shown steady gains in handling browser navigation, spreadsheets, and development tools. The model also demonstrates strategic reasoning improvements in long-horizon simulations, such as Vending-Bench Arena, where it optimizes early investments before pivoting toward profitability. On the Claude Developer Platform, Sonnet 4.6 supports adaptive thinking, extended thinking, and context compaction to maximize usable context length. API enhancements now include automated search filtering, code execution, memory, and advanced tool use capabilities for higher-quality outputs. Pricing remains consistent with Sonnet 4.5, making Opus-level performance more accessible to a broader user base. Available across Claude.ai, Cowork, Claude Code, the API, and major cloud platforms, Sonnet 4.6 becomes the new default model for Free and Pro users.