MiniMax-M3.1-Flash
MiniMax-M3.1-Flash is a reasoning model from MiniMax released on Oct 18, 2026. It reads text, images and video and writes text, with a 1M token context window and up to 512K tokens per reply.
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It costs $0.15 per million input tokens and $0.60 per million output tokens. Cached input bills at $0.015, 90% less than fresh input.
It supports tool calling, structured JSON output and prompt caching, and its weights are open, so you can host it yourself.
12 providers serve it, including Vercel AI Gateway, EmpirioLabs AI and DevPass (LLM Gateway). The lowest input price is $0.1125 per million tokens at EmpirioLabs AI.
- Modalities
- In / out price
- $0.15 / $0.60 per 1M
- Context
- 1M
- Max output
- 512K
- Released
- Oct 18, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
MiniMax-M3.1-Flash pricing
USD, as listed on Oct 19, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.15 / 1M tokens | |
|---|---|---|
| Output | $0.60 / 1M tokens | |
| Cached input (read) | $0.015 / 1M tokens | 90% off input |
MiniMax-M3.1-Flash providers
12 providers serve it, including Vercel AI Gateway, EmpirioLabs AI and DevPass (LLM Gateway). The lowest input price is $0.1125 per million tokens at EmpirioLabs AI. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| MiniMax (minimax.io) First party | $0.15 | $0.60 | $0.015 | 1M | 512K |
| Vercel AI Gateway | n/a | n/a | n/a | 1M | 524K |
| EmpirioLabs AI | $0.1125 | $0.45 | $0.0113 | 1M | 524K |
| DevPass (LLM Gateway) | $0.15 | $0.60 | $0.015 | 1.05M | 512K |
| Eden AI | $0.15 | $0.60 | $0.015 | 1M | 512K |
| LLM Gateway | $0.15 | $0.60 | $0.015 | 1.05M | 524K |
| Merge Gateway | $0.15 | $0.60 | $0.015 | 1M | 128K |
| MiniMax (minimax.cn) | $0.15 | $0.60 | $0.015 | 1M | 512K |
| Ollama Cloud | $0.15 | $0.60 | $0.015 | 1M | 512K |
| ZenMux | $0.15 | $0.60 | $0.015 | 1M | 512K |
| Venice AI | $0.1875 | $0.75 | $0.0188 | 1M | 131K |
| Kilo Gateway | n/a | n/a | n/a | 1M | 524K |
What MiniMax-M3.1-Flash costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call MiniMax-M3.1-Flash through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning
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MiniMax-M3.1-Flash questions
How much does the MiniMax-M3.1-Flash API cost?
$0.15 per million input tokens and $0.60 per million output tokens, with cached input at $0.015. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of MiniMax-M3.1-Flash?
1,000,000 tokens of input, and it can write up to 512,000 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve MiniMax-M3.1-Flash?
12 providers serve it, including Vercel AI Gateway, EmpirioLabs AI and DevPass (LLM Gateway). The lowest input price is $0.1125 per million tokens at EmpirioLabs AI. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does MiniMax-M3.1-Flash support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is MiniMax-M3.1-Flash open source?
Its weights are published, so you can run it on your own hardware or a cloud of your choice. Read the license before commercial use.
When was MiniMax-M3.1-Flash released?
Oct 18, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 19, 2026. The summary is written from these facts.