MiniMax M3.1 Flash
MiniMax M3.1 Flash is a language model from MiniMax. It is currently free at 3 providers with up to 1M tokens of context. The model supports step-by-step reasoning, is suited to coding, supports tool calling. Its weights are open, so it can also run locally.
- Developer
- MiniMax
- Context
- 1M tokens
- Type
- Text
- License
- Open weights
- Free since
- October 19, 2026
Where to use MiniMax M3.1 Flash for free
Each row is a separate free endpoint with its own limits.
| Provider | Context | Limit | Card | |
|---|---|---|---|---|
OpenRouter minimax/minimax-m3.1-flash:free |
1M | Free tier | No | Open |
TokenRouter minimax/minimax-m3.1-flash:free |
— | Free models and promotional access may be time-limited; availability is checked through the Models API. | — | Open |
OpenCode Zen minimax-m3.1-flash-free |
— | Free models are available for a limited time; prompts may be used to improve the model. | — | Open |
Quick start
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "minimax/minimax-m3.1-flash:free",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key="YOUR_OPENROUTER_API_KEY",
)
reply = client.chat.completions.create(
model="minimax/minimax-m3.1-flash:free",
messages=[{"role": "user", "content": "Hello!"}],
)
print(reply.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://openrouter.ai/api/v1",
apiKey: process.env.OPENROUTER_API_KEY,
});
const reply = await client.chat.completions.create({
model: "minimax/minimax-m3.1-flash:free",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(reply.choices[0].message.content);Example for OpenRouter. Any OpenAI-compatible client works: Cursor, Cline, OpenCode, Open WebUI.
Benchmarks
This model is not on the Artificial Analysis leaderboard yet. We do not publish our own estimates.
Similar free models
FAQ
Is MiniMax M3.1 Flash free?
Yes. As of October 19, 2026, MiniMax M3.1 Flash is free at OpenRouter, TokenRouter, OpenCode Zen. Each provider has its own limits — see the table above.
What is the context window of MiniMax M3.1 Flash?
The largest context among free routes is 1,000,000 tokens. Some providers cap it lower.
How do I call MiniMax M3.1 Flash via API?
Use any OpenAI-compatible client with base URL https://openrouter.ai/api/v1, model ID minimax/minimax-m3.1-flash:free, and a OpenRouter key.
Is MiniMax M3.1 Flash open-weight?
Yes, the weights are published — you can download and run it locally, for example with Ollama or LM Studio.