MiniMax M3.1 Flash vs o3-pro
Comparing MiniMax M3.1 Flash and o3-pro across benchmarks, pricing, and capabilities.
MiniMax · OpenAI · Updated for 2026
Which is better?
MiniMax M3.1 Flash and o3-pro trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, MiniMax M3.1 Flash is roughly 133.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
MiniMax M3.1 Flash also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose MiniMax M3.1 Flash
- cost matters — it's about 133.3x cheaper per token
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Oct 2026
Choose o3-pro
- you want predictable pricing at $20.00/M input and $80.00/M output
At a glance
The differences that matter most.
Individual benchmarks
15 reported for MiniMax M3.1 Flash · 0 for o3-pro
MiniMax M3.1 Flash and o3-prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, MiniMax M3.1 Flash ($0.15/1M tokens) is 133.3x cheaper than o3-pro ($20.00/1M tokens).
For output processing, MiniMax M3.1 Flash ($0.60/1M tokens) is 133.3x cheaper than o3-pro ($80.00/1M tokens).
In conclusion, o3-pro is more expensive than MiniMax M3.1 Flash.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
MiniMax M3.1 Flash accepts 1,000,000 input tokens compared to o3-pro's 200,000 tokens. MiniMax M3.1 Flash can generate longer responses up to 524,288 tokens, while o3-pro is limited to 100,000 tokens.
Input capabilities
Documented input modalities across available providers
Both MiniMax M3.1 Flash and o3-pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
MiniMax M3.1 Flash
o3-pro
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
MiniMax M3.1 Flash was released on 2026-10-19, while o3-pro was released on 2025-06-10.
MiniMax M3.1 Flash is 17 months newer than o3-pro.
Oct 19, 2026
0 days ago
1.4yr newerJun 10, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
o3-pro has a documented knowledge cutoff of 2024-05-31, while MiniMax M3.1 Flash's cutoff date is not specified.
We can confirm o3-pro's training data extends to 2024-05-31, but cannot make a direct comparison without MiniMax M3.1 Flash's cutoff date.
—
May 2024
Provider Availability
MiniMax M3.1 Flash is available from MiniMax. o3-pro is available from OpenAI.
MiniMax M3.1 Flash
o3-pro
Outputs Comparison
Judge for yourself.
Run your own prompts against MiniMax M3.1 Flash and o3-pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about MiniMax M3.1 Flash vs o3-pro.