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What is OpenAI Bel?

OpenAI Bel is a rumored artificial intelligence foundation model associated with a reportedly large-scale pretraining initiative at OpenAI. The project became the subject of online discussion following unofficial reports published in August 2026. These reports describe Bel as a possible successor to an earlier training effort identified by the codename Doug. According to the speculation, Bel could provide a pretrained foundation for future AI systems developed through additional training and refinement. Some reports connect the project to OpenAI's Astra model family and potential successors to GPT-6, although these relationships have not been confirmed. Unofficial sources have suggested a parameter count exceeding 10 trillion, but no technical documentation substantiates that figure. OpenAI has not disclosed the model's architecture, training data composition, computational requirements, or supported input and output modalities. Its capabilities in natural language processing, software development, mathematical reasoning, multimodal understanding, and autonomous task execution have not been publicly established. No verified benchmarks, independent evaluations, or published model cards are available for Bel. The project has no confirmed public interface, API endpoint, licensing terms, pricing structure, or release date. Bel remains an unverified model codename rather than a commercially available AI system with documented features and capabilities.

What is GPT-4.1 nano?

GPT-4.1 nano is a highly efficient, smaller-scale version of the GPT-4.1 model, built for high-speed, low-cost AI applications. It retains the core capabilities of the GPT-4.1 series, including support for a 1 million token context window, but with optimized performance for tasks like classification, search, and autocompletion. Designed to be both affordable and fast, GPT-4.1 nano is perfect for developers and businesses looking for a quick, reliable AI solution that minimizes latency and operational costs.

Media

No images available

Media

Integrations Supported

Devin Desktop
GitHub Copilot
HTML
Microsoft Foundry
Microsoft Foundry Models
OpenAI
Agentforce Vibes
Anuma
ChatGPT Health
Codex Security
Databricks
Devin
FastRouter
IntelliJ IDEA
LobeHub
Novelcrafter
Python
TypeScript
Use AI
Xcode

Integrations Supported

Devin Desktop
GitHub Copilot
HTML
Microsoft Foundry
Microsoft Foundry Models
OpenAI

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided

Pricing Information

$0.10 per 1M tokens (input)
$0.10 per 1 million tokens (input)
$0.025 per 1 million tokens (cached input)
$0.40 per 1 million tokens (output)

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Not specified

Customer Service / Support

Web-Based Support

Training Options

Not specified

Training Options

Documentation Hub

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com/index/gpt-4-1/

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

AI Vision Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

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No Alternatives

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