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MiniMax M3.1 Flash

@sdn/minimax-m3.1-flashGeneral purposeLive in the catalog

MiniMax released M3.1 Flash on 19 October 2026 as an open-weight model for everyday agent and coding work. It reads up to a million tokens, takes images, and can call several tools in one turn. It always thinks before it answers: reasoning_effort runs from low to max, and max is what you get when you send none. Repeated prompt prefixes are cached automatically, so a long agent session costs fewer credits from the second turn on.

Context window1M tokens
Served bySideren engine
Where it earns its keep[01/03]
  • 01A million-token window for long sessions and big repos
  • 02Several tool calls in one turn
  • 03Thinking depth you set, from low to max
Capabilities
Tool callingYes

Strict, schema-faithful tool calls, enforced by the engine on every request — safe to build an agent loop on.

ReasoningYes

Thinks before it answers. Budget max_tokens generously — hidden reasoning counts against it.

VisionYes

Reads images — screenshots, diagrams, and UI states — inline in the conversation.

Behind the endpoint[02/03]

One endpoint. Served by our engine.

MiniMax M3.1 Flash is served through the Sideren engine — zero-downtime serving is the design target, not a status-page apology. You request it by name; everything else is our problem.

Call it by name
curl https://api.sideren.io/v1/messages \
  -H "x-api-key: sdn_your_key" \
  -H "content-type: application/json" \
  -d '{
    "model": "@sdn/minimax-m3.1-flash",
    "max_tokens": 1024,
    "messages": [{ "role": "user", "content": "Hello" }]
  }'

OpenAI-style clients work too — send the same model name to /v1/chat/completions with a Bearer key. See the docs for both dialects.

Put your agent on inference built for the work

Your agent stays the same.
Its inference gets better.

$export ANTHROPIC_BASE_URL=https://api.sideren.io

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