MiniMax M3.1 Flash
MiniMax's cheap 1M-context multimodal model for agents and coding
Context window
1M
Input / 1M tokens
$0.15
Output / 1M tokens
$0.60
Provider
MiniMax
Cached input $0.015 per 1M; same rate at every context length. Context window reported by Artificial Analysis. MiniMax says open weights will be released later, with no date or license announced. · Data verified 2026-10-20
MiniMax M3.1 Flash (October 19, 2026) is a low-cost multimodal model for agents and coding from Chinese lab MiniMax, released after a preview codenamed "Space Bunny". It costs $0.15/$0.60 per million tokens, half the price of MiniMax M3, and scores 43 on the Artificial Analysis Intelligence Index. It is reported to be a 428B-parameter Mixture-of-Experts model; open weights are promised later.
Capability index
Relative estimates (0-100) to place this model against its peers, grounded in published benchmarks.
How to access it
MiniMax API (model ID MiniMax-M3.1-Flash), MiniMax Code, or OpenRouter (minimax/minimax-m3.1-flash).
Strengths
- ✓Low price for its capability ($0.15/$0.60 per 1M tokens)
- ✓Strong agentic coding: 73.7% on DeepSWE v1.1 (MiniMax-reported)
- ✓Artificial Analysis Intelligence Index 43
- ✓Flat pricing across the full context window
Best for developers who...
Benchmarks
| Benchmark | Score | Notes |
|---|---|---|
| DeepSWE v1.1 | 73.7% | MiniMax-reported |
| OSWorld V2 | 61.7 | MiniMax-reported |
| Artificial Analysis Intelligence Index | 43 | Third-party |
Source: MiniMax blog
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