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.
OpenRouter
Price record: 2026-10-08. Source: openrouter.
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69.5
Quality Score
1285
Arena ELO
Undisclosed
Parameters
1M
Context
This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.
18 of 22 public signals
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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127.5K
Downloads
0
Likes
Jul 2026
Released
4/5 signals
4/4 signals
5/5 signals
2/4 signals
3/4 signals
Parameters
—
Training compute
Not reported
Dataset scale
Not reported
Base model
Not reported
Source-reported access: API access · Confident confidence
Gaps we are still tracking
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.
Introducing GPT-5 for developers
Introducing GPT-5 for developers | 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 August 7, 2025 Product Introducing GPT‑5 for developers The best model for coding and agentic tasks. Loading… Share Introduction Introduction Coding Frontend engin
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 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 source1285
ELO Score
1277 - 1293
95% Confidence
+/-8 points
10.4K
Battles
Oct 8, 2026
Last Updated