Model comparison
GPT-5.6 Terra and Kimi K3.1 Pro compared on price, context window, capabilities and published benchmarks. Data comes from the OpenModels registry.
| Specification | GPT-5.6 Terra | Kimi K3.1 Pro |
|---|---|---|
| Developer | Openai | Kimi |
| Released | Jul 9, 2026 | Oct 23, 2026 |
| Context window | 1M tokens | 1.05M tokens |
| Input price / 1M | $2.00via OpenAI | $2.00via Moonshot AI |
| Output price / 1M | $12.00via OpenAI | $10.00via Moonshot AI |
| Providers | 1 | 1 |
| License | proprietary | other |
| Input modalities | audio, code, image, text | code, image, text, video |
| Capabilities | chat, completion, function-calling, vision, audio, code-generation, reasoning | chat, completion, function-calling, vision, code-generation, reasoning |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
Only benchmarks with a published score for at least one of the two models are shown. Published scores with their sources. Vendor-reported results use the vendor's own evaluation settings and are not directly comparable across vendors.
| Benchmark | GPT-5.6 Terra | Kimi K3.1 Pro |
|---|---|---|
| Artificial Analysis Intelligence Index | 42Artificial Analysis · Independent | — |