Kimi K3.1 Pro Highspeed (Moonshot AI) vs GPT-5.6 Sol
Both have similar output pricing, while GPT-5.6 Sol offers a larger context window. Choose Kimi K3.1 Pro Highspeed (Moonshot AI) or GPT-5.6 Sol based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Kimi K3.1 Pro Highspeed (Moonshot AI) | GPT-5.6 Sol |
|---|---|---|
| Provider | LLM Gateway | OpenAI |
| Input / 1M tokens | $4.00 | $4.00 |
| Output / 1M tokens | $20.00 | $20.00 |
| Context window | 1M | 1.1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Oct 2026 | — |
| GPQA Diamond score | — | 93.5 |
| LMArena (Chatbot Arena) Elo score | — | 1457 |
| Epoch Capabilities Index score | — | 163 |
| LMArena WebDev Elo score | — | 1616 |
| LMArena Vision Elo score | — | 1281 |
FAQ
Is Kimi K3.1 Pro Highspeed (Moonshot AI) or GPT-5.6 Sol cheaper?
Kimi K3.1 Pro Highspeed (Moonshot AI) and GPT-5.6 Sol have comparable output pricing.
Which has the larger context window, Kimi K3.1 Pro Highspeed (Moonshot AI) or GPT-5.6 Sol?
GPT-5.6 Sol has the larger context window (1.1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.