MiniMax M3.1 Flash

by MiniMax

Released 80 days after MiniMax H3 · Announcement · All MiniMax releases

MiniMax M3.1 Flash is an open-weight multimodal mixture-of-experts model with approximately 428 billion total parameters and 23 billion active per token. It accepts text, images and video, produces text, and supports a context window of up to one million tokens. MiniMax designed it for coding, agentic workflows and computer use. The release extends MiniMax Sparse Attention throughout the model and adds quantization-aware training and DSpark speculative decoding. MiniMax reports 73.7% on DeepSWE v1.1, 61.7 on OSWorld V2, 82.2 on CyberGym and 29.6 on Agents' Last Exam. These are MiniMax's reported evaluation results. The weights are published under the minimax-community license.

Call MiniMax M3.1 Flash on Opper with the OpenAI SDK. Sign up without a credit card. Get started

Key info

Input
Output
Features
Context window
1M
Max output
1M
Input price
$0.15 /1M$0.01 cache read
Output price
$0.60 /1M
Released
Web search
  • EU residency available on TensorX
  • US residency available on DigitalOcean and Novita
  • Zero data retention on pay-as-you-go
  • No training by default
  • GDPR DPA available

Available routes

MiniMax M3.1 Flash runs on 7 different routes through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below. In the EU it is served by TensorX. See every model hosted in the EU.

ProviderRegionZero data retentionTrainingInputOutputCache read
USNo$0.15$0.60$0.01
MultiNo$0.15$0.60$0.01
MultiNo$0.34$1.35$0.03
MultiNo$0.15$0.60$0.01
MultiNo$0.15$0.60$0.01
USNo$0.15$0.60$0.01
EUNo$0.30$1.20$0.07

Live routes and prices as JSON: api.opper.ai/v3/models?q=minimax-m3.1-flash

Uptime and availability

MiniMax M3.1 Flash runs on 4 independently monitored routes through the Opper gateway. A direct integration leaves you on one of them, the gateway serves whichever is healthy.

100%effective uptime, last 30 days
Averaged across these routes on their own, a single provider reached 98.27% over the same window.
Daily status through the gateway, which serves each request from whichever route is healthy.
4 monitored providers serve MiniMax M3.1 Flash.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. 3 further routes for this model are not on the board yet and are not counted above. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting MiniMax M3.1 Flash has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

DigitalOcean — United States🇺🇸

Zero data retention with abuse monitoring: nothing is logged or used for training; content flagged by abuse monitoring is held for review. No training on customer data. US; dpf sccs; DPA available.

Zero data retention
With abuse monitoring, flagged content held.
Training
No training on customer data.
Logging
None
Abuse monitoring
Always on, holds flagged content, stored in United States
Caching
Content cached for replay
Subprocessor access
No subprocessor reads content
GDPR DPA
DPA available
Transfer mechanism
dpf sccs

Fireworks — Multi-region

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention
Yes. Nothing is logged, held for abuse monitoring or used for training.
Training
No training on customer data.
Logging
None
Abuse monitoring
On by default, keeps nothing
Subprocessor access
Subprocessors may read content
GDPR DPA
DPA available
Transfer mechanism
SCCs

Infercom — Multi-region

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. GLOBAL; dpf sccs; DPA available.

Zero data retention
Yes. Nothing is logged, held for abuse monitoring or used for training.
Training
No training on customer data.
Logging
None
Abuse monitoring
No classifier
Subprocessor access
Subprocessors may read content
GDPR DPA
DPA available
Transfer mechanism
dpf sccs

MiniMax — Multi-region

Zero data retention with abuse monitoring: prompts and outputs are kept for abuse monitoring only, for a window the provider does not state, and are not used for training. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention
With abuse monitoring, window not stated.
Training
No training on customer data.
Logging
Abuse monitoring
Abuse monitoring
On by default, holds flagged content
Caching
Content cached for replay
GDPR DPA
DPA available
Transfer mechanism
SCCs

Nebius — Multi-region

Content is retained: provider logging. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention
Retained: provider logging.
Training
No training on customer data.
Logging
Other
Abuse monitoring
No classifier
GDPR DPA
DPA available
Transfer mechanism
SCCs

Novita — United States🇺🇸

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention
Yes. Nothing is logged, held for abuse monitoring or used for training.
Training
No training on customer data.
Logging
None
Abuse monitoring
On by default, keeps nothing
GDPR DPA
DPA available
Transfer mechanism
SCCs

TensorX — EU🇪🇺

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. EU; DPA available.

Zero data retention
Yes. Nothing is logged, held for abuse monitoring or used for training.
Training
No training on customer data.
Logging
None
Abuse monitoring
No classifier
Caching
Content cached for replay
GDPR DPA
DPA available
Transfer mechanism
Not applicable — data stays in EU

Best for

Where MiniMax M3.1 Flash ranks among the models on Opper with a score for each use case.

Benchmarks

Independent benchmark scores: the Intelligence Index and the individual evaluations behind it, grouped by skill.

Global rank#29 of 511 LLMs
TierEfficient
Output speed166 tok/s
Intelligence Index29.1
Coding
FrontierCode 2.0
21%
Terminal-Bench 4.0
26%
SciCode
53%
Agentic & knowledge work
AutomationBench
73%
GDPval
48%
GDP.pdf
21%
Briefcase (Elo)1474
Science & reasoning
Terminal-Bench Science
3%
CritPt (hard)
33%
HLE Diamond
28%
Humanity's Last Exam
48%
Long-context reasoning
80%
Knowledge
Omniscience-6.4
MMMU-Pro
79%
By domain
Finance & accounting
39.1
Legal
33.0
Healthcare & medical
36.8
Engineering
34.3
Economics
37.4
Strategy & operations
50.8

Get started

Call MiniMax M3.1 Flash through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.

MiniMax M3.1 Flash is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "minimax-m3.1-flash",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Use MiniMax M3.1 Flash in your apps

Pick your tool, then choose MiniMax M3.1 Flash to see how to run it through Opper.

Use MiniMax M3.1 Flash with tools

The tools MiniMax M3.1 Flash can use through Opper. Pick one to see how to set it up.

Compare MiniMax M3.1 Flash with…

Side-by-side on privacy, EU hosting, pricing, and benchmarks.

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