// minimax
MiniMax M3.1 Flash (free)
minimax/minimax-m3.1-flash:free
MiniMax M3.1 Flash (free) is free to call with a 1M-token context window.
A reasoning, tool-calling model from minimax, released Oct 19, 2026. LiveBench hasn't published a run for it, so this page carries measured price and specs only — no benchmark numbers.
- Input / 1M
- Free
- Output / 1M
- Free
- Context
- 1M
- LiveBench overall
- Not evaluated
Specs and pricing
| Input price USD per 1M prompt tokens | Free |
|---|---|
| Output price USD per 1M completion tokens, reasoning included | Free |
| Blended price 3:1 input:output — #1 cheapest of 353 listed models | Free |
| Cached input read Blank means not priced separately — not free | — |
| Cache write | — |
| Context window | 1,000,000 tokens |
| Max output | 524,288 tokens |
| Input modalities | text, image, video |
| Tool calling | Yes |
| Extended reasoning | Yes |
| Knowledge cutoff | — |
| Listed | Oct 19, 2026 |
What MiniMax M3.1 Flash (free) costs to run
Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.
| Workload | Per month |
|---|---|
| Support chatbot 1.2K in / 400 out × 200K requests | $0/mo |
| RAG assistant 8K in / 600 out × 100K requests | $0/mo |
| Coding agent 40K in / 4K out × 20K requests | $0/mo |
| Document extraction 20K in / 1.5K out × 50K requests | $0/mo |
| Bulk classification 500 in / 20 out × 5M requests | $0/mo |
MiniMax M3.1 Flash (free) FAQ
How much does MiniMax M3.1 Flash (free) cost?
MiniMax M3.1 Flash (free) is listed as free on OpenRouter, typically with tighter rate limits than paid models.
What is the context window of MiniMax M3.1 Flash (free)?
MiniMax M3.1 Flash (free) accepts up to 1,000,000 tokens of context and can return up to 524,288 output tokens per response.
Does MiniMax M3.1 Flash (free) support tool calling?
Yes — MiniMax M3.1 Flash (free) supports tool (function) calling and exposes extended reasoning. It accepts text, image, video input.
How does MiniMax M3.1 Flash (free) score on benchmarks?
LiveBench has not published a run for MiniMax M3.1 Flash (free) yet. Until it does, compare it on price and specs, or run your own evaluation on your own tasks.
What is the API model ID for MiniMax M3.1 Flash (free)?
On OpenRouter the model ID is "minimax/minimax-m3.1-flash:free". It was listed on Oct 19, 2026.
More from minimax
How these numbers are produced
- Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
- Scores and ranks — LiveBench release —. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
- Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.