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Pick up to 4. Every model here is free in free-pi.
GPT-6.1 Sol Kimi K3.1 Pro GPT-OSS 120B
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| GPT-6.1 Sol | Kimi K3.1 Pro | GPT-OSS 120B | |
|---|---|---|---|
| Maker | OpenAI | MoonshotAI | OpenAI |
| Usage in free-pi | premium, uses allowance fast · ~41x usage | ~41x usage | ~0.6x usage |
| Intelligence index | 51.8 (best) | — | 11.6 |
| Coding index | — | — | 30.4 |
| Context window | 1,050,000 tokens (best) | 1,048,576 tokens | 131,072 tokens |
| Max output | 128,000 tokens | 943,718 tokens (best) | 65,536 tokens |
| Inputs | Text, image, file (best) | Text, image, video (best) | Text |
| Tool calling | Yes | Yes | Yes |
| Reasoning effort | Yes | Yes | Yes |
| Structured output | Yes | Yes | Yes |
| Released | Sep 29, 2026 | Oct 23, 2026 | Aug 5, 2025 |
| Model page | Model page | Model page | Model page |
Stats from OpenRouter; refreshed automatically. Usage rate from free-pi. Green marks the best value in each row. “—” means no figure is available.