OpenAI
OpenAI's flagship GPT-5.6 model for complex reasoning, coding, computer use, science, and professional work. Sol is generally available through ChatGPT, Codex, and the API.
OpenAI's flagship GPT-5.6 model for complex reasoning, coding, computer use, science, and professional work.
73.8
Quality Score
1281
Arena ELO
Undisclosed
Parameters
1M
Context
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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Jul 2026
Released
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
GPT-5.6: Frontier intelligence that scales with your ambition
GPT-5.6: Frontier intelligence that scales with your ambition | OpenAI Skip to main content Research Products Business Developers Company Foundation (opens in a new window) Log in Try ChatGPT (opens in a new window) Research Products Business Developers Company Foundation (opens in a new window) Try ChatGPT (opens in a new window) Login OpenAI July 9, 2026 Product Release GPT‑5.6: Frontier intelligence that scales with your ambition More intelligence from every token, stronge
View sourceGPT-5.6: Frontier intelligence that scales with your ambition
GPT-5.6: Frontier intelligence that scales with your ambition | OpenAI Skip to main content Research Products Business Developers Company Foundation (opens in a new window) Log in Try ChatGPT (opens in a new window) Research Products Business Developers Company Foundation (opens in a new window) Try ChatGPT (opens in a new window) Login OpenAI July 9, 2026 Product Release GPT‑5.6: Frontier intelligence that scales with your ambition More intelligence from every token, stronge
View sourceGPT-5.6: Frontier intelligence that scales with your ambition
GPT-5.6: Frontier intelligence that scales with your ambition | OpenAI Skip to main content Research Products Business Developers Company Foundation (opens in a new window) Log in Try ChatGPT (opens in a new window) Research Products Business Developers Company Foundation (opens in a new window) Try ChatGPT (opens in a new window) Login OpenAI July 9, 2026 Product Release GPT‑5.6: Frontier intelligence that scales with your ambition More intelligence from every token, stronge
View sourceIntroducing GPT-5.2
Introducing GPT-5.2 | OpenAI Skip to main content Research Products Business Developers Company Foundation (opens in a new window) Log in Try ChatGPT (opens in a new window) Research Products Business Developers Company Foundation (opens in a new window) Try ChatGPT (opens in a new window) Login OpenAI December 11, 2025 Product Release Introducing GPT‑5.2 The most advanced frontier model for professional work and long-running agents. Loading… Share Model performance Model per
View sourceGPT-5.6 Sol has been used to solve open problems in mathematics. So why was it struggling with ARC-AGI-3, a benchmark of 2D puzzle games? We investigated. The harness was not letting it remember what
GPT-5.6 Sol has been used to solve open problems in mathematics. So why was it struggling with ARC-AGI-3, a benchmark of 2D puzzle games? We investigated. The harness was not letting it remember what it had learned. We found that enabling two API settings tripled our scores https://t.co/0mv05MnSn2
View source1281
ELO Score
1271 - 1291
95% Confidence
+/-10 points
5.2K
Battles
Aug 24, 2026
Last Updated