GPT-5.6 Terra
Released Jul 2026 · knowledge cutoff Feb 2026. Proprietary, available through the provider's API.
GPT-5.6 Terra 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 $3.11 per million tokens and delivers about 34.7 tokens per second.
Where GPT-5.6 Terra 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 Terra 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 | 66% |
| Coding | 59% |
| Agents | 62% |
| Math | 77% |
| Vision | 66% |
| Long Context | 78% |
| Writing | n/a |
| Knowledge | 61% |
How GPT-5.6 Terra stacks up against every other model
Below is every head-to-head comparison involving GPT-5.6 Terra. 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 Terravs GPT-5.6 Sol
GPT-5.6 Sol leads 12–0
GPT-5.6 Terravs Claude Opus 5
GPT-5.6 Terra leads 9–3
GPT-5.6 Terravs Kimi K3
Kimi K3 leads 10–3
GPT-5.6 Terravs Claude Fable 5
GPT-5.6 Terra leads 10–3
GPT-5.6 Terravs GPT-5.6 Sol
GPT-5.6 Sol leads 12–0
GPT-5.6 Terravs Claude Opus 5
GPT-5.6 Terra leads 9–3
GPT-5.6 Terravs Kimi K3
Kimi K3 leads 10–3
GPT-5.6 Terravs Claude Fable 5
GPT-5.6 Terra leads 10–3
GPT-5.6 Terravs Qwen3.8 Max
Qwen3.8 Max leads 7–6
GPT-5.6 Terravs Grok 4.5
GPT-5.6 Terra leads 9–3
GPT-5.6 Terravs DeepSeek-V4-Flash-0731
GPT-5.6 Terra leads 11–1
GPT-5.6 Terravs GLM-5.2
GPT-5.6 Terra leads 10–2
GPT-5.6 Terravs Claude Sonnet 5
GPT-5.6 Terra leads 9–5
GPT-5.6 Terravs Qwen3.8 Max
Qwen3.8 Max leads 7–6
GPT-5.6 Terravs Grok 4.5
GPT-5.6 Terra leads 9–3
GPT-5.6 Terravs DeepSeek-V4-Flash-0731
GPT-5.6 Terra leads 11–1
GPT-5.6 Terravs GLM-5.2
GPT-5.6 Terra leads 10–2
GPT-5.6 Terravs Claude Sonnet 5
GPT-5.6 Terra leads 9–5
Choose a matchup above, or start from the hub to pick any two models.