GPT-5.6 Sol
Released Jul 2026 · knowledge cutoff Feb 2026. Proprietary, available through the provider's API.
GPT-5.6 Sol is built by OpenAI and has 44 benchmark results tracked in the public leaderboard. It supports multimodal input, with a context window of 1.05M tokens. At the blended 8:1 input-to-output rate, it costs $7.78 per million tokens and delivers about 26 tokens per second.
Where GPT-5.6 Sol ranks
The chart below ranks every model in the comparison by overall capability, which is the average of a model's scores across the eight workload axes. GPT-5.6 Sol is the red bar. This is the single number to check first: it tells you where the model sits in the current pecking order before you dig into the detail.
Workload strengths
Each row below is the average normalized score across every benchmark tagged with that workload category. A higher number means the model performs better on that kind of task relative to the maximum possible score on those benchmarks. Categories where the model has no published results are shown as n/a.
| Workload | Index (0–1) |
|---|---|
| Reasoning | 71% |
| Coding | 64% |
| Agents | 65% |
| Math | 86% |
| Vision | 73% |
| Long Context | 83% |
| Writing | n/a |
| Knowledge | 65% |
How GPT-5.6 Sol stacks up against every other model
Below is every head-to-head comparison involving GPT-5.6 Sol. Each card shows the win/loss tally across all workload axes and headline benchmarks. Tap any matchup for the full breakdown with per-benchmark scores, pricing, and workload recommendations.
GPT-5.6 Solvs Claude Opus 5
GPT-5.6 Sol leads 10–2
GPT-5.6 Solvs Kimi K3
GPT-5.6 Sol leads 7–6
GPT-5.6 Solvs Claude Fable 5
GPT-5.6 Sol leads 11–2
GPT-5.6 Solvs GPT-5.6 Terra
GPT-5.6 Sol leads 12–0
GPT-5.6 Solvs Qwen3.8 Max
GPT-5.6 Sol leads 7–6
GPT-5.6 Solvs Grok 4.5
GPT-5.6 Sol leads 12–0
GPT-5.6 Solvs DeepSeek-V4-Flash-0731
GPT-5.6 Sol leads 11–1
GPT-5.6 Solvs GLM-5.2
GPT-5.6 Sol leads 10–2
GPT-5.6 Solvs Claude Sonnet 5
GPT-5.6 Sol leads 11–3
GPT-5.6 Solvs Claude Opus 5
GPT-5.6 Sol leads 10–2
GPT-5.6 Solvs Kimi K3
GPT-5.6 Sol leads 7–6
GPT-5.6 Solvs Claude Fable 5
GPT-5.6 Sol leads 11–2
GPT-5.6 Solvs GPT-5.6 Terra
GPT-5.6 Sol leads 12–0
GPT-5.6 Solvs Qwen3.8 Max
GPT-5.6 Sol leads 7–6
GPT-5.6 Solvs Grok 4.5
GPT-5.6 Sol leads 12–0
GPT-5.6 Solvs DeepSeek-V4-Flash-0731
GPT-5.6 Sol leads 11–1
GPT-5.6 Solvs GLM-5.2
GPT-5.6 Sol leads 10–2
GPT-5.6 Solvs Claude Sonnet 5
GPT-5.6 Sol leads 11–3
Choose a matchup above, or start from the hub to pick any two models.