OpenAI
OpenAI's most advanced reasoning model. Incorporates significant improvements over GPT-5 in complex multi-step reasoning, coding, and instruction-following.
OpenRouter
Price record: 2026-10-03. Source: openrouter.
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56.5
Quality Score
1229
Arena ELO
Undisclosed
Parameters
256K
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.
17 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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0
Downloads
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Likes
Dec 2025
Released
4/5 signals
4/4 signals
5/5 signals
1/4 signals
3/4 signals
Parameters
—
Training compute
Not reported
Dataset scale
Not reported
Base model
Not reported
Source-reported access: API access · Unknown confidence
Gaps we are still tracking
Metadata sources
Epoch AI, Data on AI Models. Used under CC BY with attribution.
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-5.2-2025-12-11 - SWE-Bench Verified
SWE-Bench Verified resolved rate 71.8
View sourcegpt-5-2 - SWE-Bench Verified
SWE-Bench Verified resolved rate 72.8
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 sourceIntroducing 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 sourceModels | OpenAI API
ChatGPT Start searching API Dashboard Try ChatGPT Home API Overview Get started with the OpenAI API Models Explore models and compare capabilities Agents Build persistent agents on hosted infrastructure Tools Connect models to tools and data Audio & voice Build speech and realtime voice experiences Production Deploy and scale your API integrations API reference Explore endpoints, parameters, and responses ChatGPT Sign in with ChatGPT Apps powered by your user's ChatGP
View source1229
ELO Score
1223 - 1235
95% Confidence
+/-6 points
20.1K
Battles
Oct 3, 2026
Last Updated