Mistral Large 4 vs Beam 1.0
Mistral Large 4 is from Mistral, released October 6, 2026. Beam 1.0 is from Reflection AI, released October 5, 2026.
- LMArena Elo1434 vs 1436. Beam 1.0 is 0.1% ahead on LMArena Elo.
- Context window1M vs 1M. Both hold 1M tokens of context.
Prices are the vendors’ published API rates; Elo is LMArena’s text board. Each figure is dated on its model page.
Interactive Comparison
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$1.36 / $4.18 per million tokens | Not published — open weights (Apache 2.0); Reflection API | |
|---|---|---|
| Identity | ||
| Developer | Mistral | Reflection AI |
| Released | Oct 2026 | Oct 2026 |
| Status | Preview | — |
| Licence | — | Apache 2.0 (open weights) |
| Self-hostable | — | Yes — BF16, FP8 and NVFP4 weights |
| Cost | ||
| Blended $/1M tokensinput × 0.75 + output × 0.25 | $2.065 / 1M tokens | — |
| Input price | $1.360 / 1M tokens | — |
| Output price | $4.180 / 1M tokens | — |
| Cached input | $0.14 per 1M tokens | — |
| Capacity | ||
| Context window | 1M tokens | 1M tokens |
| Capability | ||
| Vision in | Yes | No — text in, text out |
| Access | ||
| API | Yes | Yes — Reflection API (OpenAI SDK compatible) |
| Fine-tuning | — | Yes — Reflection documents fine-tuning and post-training with open-source stacks |
| Measured quality | ||
| LMArena Elo | 1434 (checked Oct 2026) | 1436 (checked Oct 2026) |
| LMArena rank | Rank 111 | Rank 104 |
| Elo per dollarLMArena Elo ÷ blended $/1M tokens | 694 | — |