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Pick up to 4. Every model here is free in free-pi.
GPT-6.1 Terra Claude Haiku 5.5 DeepSeek V4.1 Flash
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| Attribute | GPT-6.1 Terra | Claude Haiku 5.5 | DeepSeek V4.1 Flash |
|---|---|---|---|
| Maker | OpenAI | Anthropic | DeepSeek |
| Usage in free-pi | premium, uses allowance fast · ~20x usage | ~2.0x usage | ~3.0x usage |
| Intelligence index | 51 (best) | 36.2 | 28.5 |
| Coding index | — | — | — |
| Context window | 1,050,000 tokens (best) | 1,000,000 tokens | 1,048,576 tokens |
| Max output | 128,000 tokens | 128,000 tokens | 393,216 tokens (best) |
| Inputs | Text, image, file (best) | Text, image, file (best) | Text, image |
| Tool calling | Yes | Yes | Yes |
| Reasoning effort | Yes | Yes | Yes |
| Structured output | Yes | Yes | Yes |
| Released | Oct 26, 2026 | Oct 7, 2026 | Oct 17, 2026 |
| Model page | Model page | Model page | Model page |
Stats refreshed automatically. Usage rate from free-pi. Green marks the best value in each row. “—” means no figure is available.