Turn plain-language prompts into real, full-stack apps you fully own.
★★★★☆4.2
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MiniMax M3.1 Flash
428B MoE agentic model with 1M context at budget API pricing.
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What is MiniMax M3.1 Flash?
MiniMax M3.1 Flash, launched October 19, 2026, is a 428-billion-parameter mixture-of-experts model (about 23 billion parameters active) built for agentic work. MiniMax confirms the model previously topped leaderboards anonymously as “Space Bunny,” which processed over 200 trillion tokens before the reveal. The company says output speed reaches 200+ tokens per second, with agentic-task costs 70% lower than its predecessor, and reports 73.7% on DeepSWE v1.1, 61.7 on OSWorld V2, and 82% on CyberGym for security tasks.
M3.1 Flash accepts text, image, and video input with a 1-million-token context window, and reasoning is always on with five effort levels from Low to Max. It is available now through the MiniMax API, the M Plan subscription, and the MiniMax Code desktop app, with open weights promised later in October. Flat pricing of $0.15 per million input tokens and $0.60 per million output tokens positions it squarely as the budget option for teams running long agent workflows.
Key Features
- 428B MoE model (~23B active) tuned for coding and agentic office work
- 1-million-token context window with text, image, and video input
- 200+ tokens per second output with always-on reasoning at five effort levels
- Flat API pricing of $0.15 input / $0.60 output / $0.015 cached input per 1M tokens
- Available on MiniMax API, M Plan subscription, and MiniMax Code desktop app
Pros
- Near-frontier agentic scores at flash-tier pricing for long agent workflows
- 1M context and cheap cached tokens fit agents that re-read big codebases
- The Space Bunny stealth run gave it public benchmark history before launch
Cons
- Reasoning is always on and cannot be disabled, which changes migration behavior for M3 users
- Weights not yet released; self-hosting hardware requirements undisclosed
- All headline benchmarks are MiniMax-reported; independent verification is still pending
Pricing
- Model: Freemium
- Pay-as-you-go API: $0.15 per 1M input / $0.60 per 1M output tokens, $0.015 cached input — check the official site for current pricing.
Adding Up Your AI Bill?
If you pay for MiniMax M3.1 Flash alongside other AI subscriptions, the monthly total adds up quietly. Tick every tool you pay for in our free AI Tool Cost Calculator to see your real monthly and yearly bill — and spot overlaps you can cut. Still choosing? Start with our guide on how to choose the right AI tool.
How We Rated It
Scores reflect our editors’ independent assessment at the time of review.
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