# MiniMax M3.1 Flash

MiniMax M3.1 Flash is MiniMax's fast, low-cost successor to M3, built for agentic work, coding, computer use and long-context tasks across a 1M-token window. Its reasoning is always on and tunable across five effort levels, and it accepts text and image input with tool calling. Its published context window is 1,000,000 tokens. The advertised input rate is $0.15 per million input tokens. The advertised output rate is $0.60 per million output tokens.

- Model identifier: ` minimaxai/minimax-m3.1-flash `
- Creator: MiniMax
- Providers: MiniMax
- Model type: Text generation
- Canonical model page: [MiniMax M3.1 Flash](<https://impossibl.com/minimaxai/minimax-m3.1-flash>)
- API availability: Listed as serving through Impossibl.
- Creator release date: 2026-10-19

## Providers

MiniMax hosts MiniMax M3.1 Flash. Impossibl routes your request intelligently and handles failover automatically when a provider is down.

| Provider | Endpoint location | Routes | Verified context window | Tool calling |
| --- | --- | --- | --- | --- |
| MiniMax | Not specified | 1 | Not verified | Not verified |

The model price applies whichever provider serves the request. Endpoint locations do not guarantee inference residency.

## Specs and Capabilities

- Context window: 1,000,000 tokens
- Maximum output tokens: Not published in the public catalog; this is separate from the context window.
- Inputs: text, image
- Outputs: text
- Tool calling: Not published

## API access

Use ` minimaxai/minimax-m3.1-flash ` as the model identifier through the Impossibl API.

Published API endpoints:

- ` /v1/chat/completions `

[API quickstart](<https://impossibl.com/docs/agent-quickstart>) · [Models and billing documentation](<https://impossibl.com/docs/models>)

## Published API prices

All rates are in USD. An unpublished rate is unknown, not zero. Workspace-specific pricing, taxes, balance-purchase fees, billing adjustments, and tool charges can affect the amount paid.

| Usage | Published base rate | Billing unit |
| --- | --- | --- |
| Input | $0.15 | per million input tokens |
| Output | $0.60 | per million output tokens |
| Cache read | $0.015 | per million cached input tokens |
| Cache write (default retention) | Not published | per million tokens |
| Cache write (one-hour retention) | Not published | per million tokens |
| Audio input | Not published | per million audio input tokens |

## Benchmarks

Last checked: 2026-10-19T17:19:52.584Z.
Configurations are evaluated separately. API scores retain their original units. Unmeasured scores are omitted.

### MiniMax-M3.1-Flash

Source: [Evaluation source](<https://artificialanalysis.ai/models/minimax-m3-1-flash>)

| Benchmark | Score |
| --- | --- |
| Intelligence Index | 42.38 |
| Omniscience Index | 15.55 |
| Humanity’s Last Exam | 47.96% |
| SciCode | 53.36% |
| CritPt | 22.29% |
| AA-LCR | 79.67% |
| GDPval Elo | 1457.69 |
| GDP.pdf All-pass | 20.80% |
| AutomationBench Partial | 72.52% |
| MMMU-Pro | 79.13% |
| legal index (API) | 46.8 |
| economics index (API) | 50 |
| engineering index (API) | 43.4 |
| intelligence index (API) | 42.4 |
| strategy and ops index (API) | 54.6 |
| finance and accounting index (API) | 49 |

Full benchmark data and breakdowns: [Complete benchmark snapshot](<https://api.impossibl.com/v1/models/minimaxai/minimax-m3.1-flash/benchmarks>).


## Availability and retirement

The model is listed as serving. No retirement is announced in the current public catalog.

## Frequently asked questions

### What is MiniMax M3.1 Flash?

MiniMax M3.1 Flash is MiniMax's fast, low-cost successor to M3, built for agentic work, coding, computer use and long-context tasks across a 1M-token window. Its reasoning is always on and tunable across five effort levels, and it accepts text and image input with tool calling.

Sources: [MiniMax release announcement](<https://www.minimax.io/blog/minimax-m31f>); [MiniMax pricing](<https://platform.minimax.io/docs/guides/pricing>)

### How much does MiniMax M3.1 Flash cost?

MiniMax M3.1 Flash costs $0.15 per million input tokens and $0.60 per million output tokens through the Impossibl API. Cache reads cost $0.015 per million tokens. All rates are in USD.

### What is the context length of MiniMax M3.1 Flash?

MiniMax M3.1 Flash has a 1,000,000-token context window through the Impossibl API.

### What inputs and outputs does MiniMax M3.1 Flash support?

MiniMax M3.1 Flash accepts text and image as input. MiniMax M3.1 Flash returns text.

### How do I use MiniMax M3.1 Flash through an API?

MiniMax M3.1 Flash is available through the Impossibl API. Use minimaxai/minimax-m3.1-flash as the model identifier with /v1/chat/completions. The quickstart explains how to create an API key and send your first request.

### When was MiniMax M3.1 Flash released?

MiniMax released MiniMax M3.1 Flash on October 19, 2026.

Sources: [Creator release announcement](<https://www.minimax.io/blog/minimax-m31f>)

## Sources and related links

Prices, limits, capabilities, endpoints, and availability come from the public Impossibl catalog. Creator documentation supplies descriptions and release dates where available; it does not override the published API offering.

- [Public Impossibl model catalog](<https://api.impossibl.com/v1/models>)
- [Full model directory as JSON](<https://impossibl.com/models.json>)
- [MiniMax M3.1 Flash: model details and pricing](<https://impossibl.com/minimaxai/minimax-m3.1-flash>)
- [Model directory](<https://impossibl.com/models>)
- [MiniMax release announcement](<https://www.minimax.io/blog/minimax-m31f>)
- [MiniMax pricing](<https://platform.minimax.io/docs/guides/pricing>)