GPT-5.6 Sol leads on the shared-benchmark average
Ahead on 8 of 8 shared benchmarks, averaging 19.3 points higher
Summarised only from the 8 percentage-scale benchmarks scored by every selected model; details are below. A further 2 Elo/rating-scale benchmarks are left out of the average — their scale cannot be added to percentages.
“Best available” takes each model’s highest recorded non-parallel mode per benchmark, so it may combine modes into a virtual configuration that does not exist. Read it with the mode breakdown.

GPT-5.6 Sol
OpenAI
Benchmark-by-benchmark comparison. Changing the thinking mode or tool filters updates the chart and table below.
“Best available” picks the highest non-parallel mode separately for each benchmark. The resulting series can combine several reasoning levels and is not one reproducible runtime configuration. Choose a mode filter to compare like-for-like runs.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
Each axis is the mean percentage score of one benchmark domain. It is an average, not a capability rating.
Relative edge: 数学推理 +36.5 / Relative gap: none clear
Relative edge: none clear / Relative gap: 数学推理 -36.5
Method: for each model and benchmark, all scores in the current mode scope are averaged (not the best score), then those benchmark scores are averaged within each domain. Only benchmarks scored on a 0-100 scale by at least two of the selected models count — Elo and rating-scale benchmarks such as Codeforces or Arena are excluded, because averaging a 1500 rating with an 85% accuracy produces a meaningless number. Missing values are not counted as zero, and the averages are unweighted, so domains with harder benchmarks read lower.
Every model and runtime mode, benchmark by benchmark. Values are comparable along a row, not between different benchmarks.
10 benchmarks with comparable scores. Each model shows its best score; mode label is displayed below.
| Benchmark | GPT-5.6 Sol | GPT-5.2 |
|---|---|---|
ARC-AGI-1 综合评估 | 97.50Thinking Level · Extra High | 86.20Thinking Level · Extra High |
ARC-AGI-2 综合评估 | 92.50Thinking Level · High | 52.90Thinking Level · Extra High |
HLE 综合评估 | 49.50Thinking Level · High | 45.50Deep Thinking Mode | Tools |
GPQA Diamond 科学与综合推理 | 93.50Thinking Level · High | 92.40Thinking Level · Extra High |
Creative Writing 写作和创作 | 1964.10Standard Mode | 1698.90Standard Mode |
SWE-Bench Pro - Public 编程与软件工程 | 64.60Thinking Level · Extra High | Tools | 55.60Thinking Level · Extra High | Tools |
Text Arena (Coding) 编程与软件工程 | 1620.27Thinking Level · Extra High | 1480.00Thinking Level · High |
WeirdML v2 编程与软件工程 | 88.76Thinking Level · High | Tools | 72.20Thinking Level · Extra High | Tools |
82.93Thinking Level · High | 31.70Thinking Level · Extra High | |
FrontierMath v2 数学推理 | 89.12Thinking Level · High | 67.40Thinking Level · Extra High |
Official list prices per model API, split by input and output. Unit: USD per 1M tokens.
Architecture, licensing and API modalities. "Not provided" means the field is missing from our database.
| Features & specs | GPT-5.6 SolOpenAI | GPT-5.2OpenAI |
|---|---|---|
Core specsRelease | 2026-06-26 | 2025-12-11 |
Context length | 1.05M | 400K |
Max output length | 128,000 tokens | Not provided |
Architecture | Undisclosed | Undisclosed |
Runtime modes | 关闭低中高极高最高 | 低中高极高 |
Availability & licensingCode availability | Not public | Not public |
Weight availability | Not public | Not public |
Use & commercial terms | Official service only; subject to provider terms | Official service only; subject to provider terms |
API modality supportText Input/Output | Input:YesOutput:Yes | Input:YesOutput:Yes |
Image Input/Output | Input:YesOutput:No | Input:YesOutput:No |
ResourcesPaper / report | Previewing GPT-5.6 Sol: a next-generation model | Introducing GPT-5.2 |

GPT-5.2
OpenAI