Compare models
Pick up to 4. Every model here is free in free-pi.
Defense Flash GPT-6.1 Sol Flex
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- DeepSeek V4 Flash
- Claude Haiku 5.5
- Claude Sonnet 5.5
- DeepSeek V4.1 Flash
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- Defense Flash 2
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- Gemini 4 Argon Flex
- GLM 5.3 Flash
- GPT-6.1 Sol
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- GPT-6 Luna Flex
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- Muse Spark 1.3 Contributor
- Muse Spark Open (Meta)
- Qwen3.5 35B (Darkbloom)
- Solar Pro 4
| Defense Flash | GPT-6.1 Sol Flex | |
|---|---|---|
| Maker | — | OpenAI |
| Usage in free-pi | ~20x usage | slower, half price · ~20x usage |
| Intelligence index | — | 51.8 |
| Coding index | — | — |
| Context window | — | 1,050,000 tokens |
| Max output | — | 128,000 tokens |
| Inputs | — | Text, image, file |
| Tool calling | — | Yes |
| Reasoning effort | — | Yes |
| Structured output | — | Yes |
| Released | — | Sep 29, 2026 |
| 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.