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MiniMax M3 vs Seed 2.1 Pro

Seed 2.1 Pro leads the LLM Stats Score 47.0 to 41.9.

MiniMax · ByteDance · Updated for 2026

Which is better?

Seed 2.1 Pro leads the overall LLM Stats Score 47.0 to 41.9, ranking #20 overall.

In the 11 individual benchmarks reported for both models, Seed 2.1 Pro wins 8; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose MiniMax M3

  • you need open weights you can self-host or fine-tune

Choose Seed 2.1 Pro

  • overall performance matters — it scores 47.0 and ranks #20 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 8 of 11 exact shared results
  • you want the most recent training data — it shipped Jun 2026

At a glance

The differences that matter most.

MiniMax M3
MiniMax
Seed 2.1 Pro
ByteDance
Core performance indexes
LLM Stats Score
41.9
#42
47.0
#20
Reasoning
41.8
#39
47.9
#18
Coding
34.4
#30
36.0
#25
Agents
27.8
#38
33.1
#22
Cost, coverage & limits
Benchmark wins
3 of 11
8 of 11
Input price
$0.30 / M
— / M
Output price
$1.20 / M
— / M
Context window
512,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

4 shared
Index
MiniMax M3
Seed 2.1 Pro
Math
25.1#101
39.8#15
Vision
25.6#37
34.9#10
Tool use
22.8#42
27.9#17
Multimodal
28.2#27
37.7#4
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

35 reported for MiniMax M3 · 94 for Seed 2.1 Pro

11 shared

MiniMax M3 outperforms in 3 benchmarks (IMO 2025, PostTrainBench, SWE-Bench Pro), while Seed 2.1 Pro is better at 8 benchmarks (APEX-Agents, BrowseComp, MCP Atlas, MMMU-Pro, NL2Repo, OfficeQA Pro, Terminal-Bench 2.1, Video-MME).

Seed 2.1 Pro shows notably better performance in the majority of benchmarks.

Fri Aug 28 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only MiniMax M3 specifies input context (512,000 tokens). Only MiniMax M3 specifies output context (131,072 tokens).

MiniMax
MiniMax M3
Input512,000 tokens
Output131,072 tokens
ByteDance
Seed 2.1 Pro
Input- tokens
Output- tokens
Fri Aug 28 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both MiniMax M3 and Seed 2.1 Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

MiniMax M3

Text
Images
Audio
Video

Seed 2.1 Pro

Text
Images
Audio
Video

License

Usage and distribution terms

MiniMax M3 is licensed under MIT, while Seed 2.1 Pro uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

MiniMax M3

MIT

Open weights

Seed 2.1 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

MiniMax M3 was released on 2026-06-01, while Seed 2.1 Pro was released on 2026-06-24.

Seed 2.1 Pro is 1 month newer than MiniMax M3.

MiniMax M3

Jun 1, 2026

2 months ago

Seed 2.1 Pro

Jun 24, 2026

2 months ago

3w newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against MiniMax M3 and Seed 2.1 Pro side-by-side, then vote on the output you prefer.

MiniMax M3
✓ Preferred
Seed 2.1 Pro
Open in Playground

FAQ

Common questions about MiniMax M3 vs Seed 2.1 Pro.

Which is better, MiniMax M3 or Seed 2.1 Pro?

Seed 2.1 Pro leads the LLM Stats Score 47.0 to 41.9. MiniMax M3 is made by MiniMax and Seed 2.1 Pro is made by ByteDance. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does MiniMax M3 compare to Seed 2.1 Pro in benchmarks?

MiniMax M3 scores OmniDocBench 1.5: 91.6%, SpreadSheetBench-v1: 89.3%, USAMO 2026: 85.7%, Video-MME: 85.4%, VideoMMMU: 84.6%. Seed 2.1 Pro scores CharXiv-D: 95.5%, MathVision: 94.5%, MathVista: 90.7%, MathVerse: 89.7%, Video-MME: 89.2%.

What are the context window sizes for MiniMax M3 and Seed 2.1 Pro?

MiniMax M3 supports 512K tokens and Seed 2.1 Pro supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between MiniMax M3 and Seed 2.1 Pro?

Key differences include LLM Stats Score (41.9 vs 47.0), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes MiniMax M3 and Seed 2.1 Pro?

MiniMax M3 is developed by MiniMax and Seed 2.1 Pro is developed by ByteDance.

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