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Mistral Large 4 vs Seed 2.1 Pro

Mistral Large 4 and Seed 2.1 Pro are closely matched at 46.2 and 45.8 on the LLM Stats Score.

Mistral AI · ByteDance · Updated for 2026

Which is better?

Mistral Large 4 and Seed 2.1 Pro are closely matched on the overall LLM Stats Score at 46.2 and 45.8.

In the 3 individual benchmarks reported for both models, Mistral Large 4 wins 2; 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 Mistral Large 4

  • you value its reported benchmark strengths — it wins 2 of 3 exact shared results
  • you want the most recent training data — it shipped Oct 2026

Choose Seed 2.1 Pro

  • you are already invested in the ByteDance ecosystem

At a glance

The differences that matter most.

Mistral Large 4
Mistral AI
Seed 2.1 Pro
ByteDance
Core performance indexes
LLM Stats Score
46.2
#34
45.8
#35
Reasoning
44.0
#43
47.1
#29
Coding
35.8
#27
32.0
#48
Agents
34.3
#26
30.9
#36
Cost, coverage & limits
Benchmark wins
2 of 3
1 of 3
Input price
$0.68 / M
— / M
Output price
$2.09 / M
— / M
Context window
1,000,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Mistral Large 4
Seed 2.1 Pro
Vision
1.1#187
34.3#16
Tool use
27.1#26
24.2#39
Multimodal
1.7#160
37.5#6
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

18 reported for Mistral Large 4 · 94 for Seed 2.1 Pro

3 shared

Mistral Large 4 outperforms in 2 benchmarks (CyberGym, SciCode), while Seed 2.1 Pro is better at 1 benchmark (ChartQAPro).

Mistral Large 4 shows notably better performance in the majority of benchmarks.

Thu Oct 08 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Mistral Large 4 specifies input context (1,000,000 tokens).

Mistral AI
Mistral Large 4
Input1,000,000 tokens
Output- tokens
ByteDance
Seed 2.1 Pro
Input- tokens
Output- tokens
Thu Oct 08 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Mistral Large 4 and Seed 2.1 Pro support multimodal inputs.

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

Mistral Large 4

Text
Images
Audio
Video

Seed 2.1 Pro

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Mistral Large 4

Proprietary

Closed source

Seed 2.1 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Mistral Large 4 was released on 2026-10-06, while Seed 2.1 Pro was released on 2026-06-24.

Mistral Large 4 is 3 months newer than Seed 2.1 Pro.

Mistral Large 4

Oct 6, 2026

1 days ago

3mo newer
Seed 2.1 Pro

Jun 24, 2026

3 months ago

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?

Judge for yourself.

Run your own prompts against Mistral Large 4 and Seed 2.1 Pro side-by-side, then vote on the output you prefer.

Mistral Large 4
✓ Preferred
Seed 2.1 Pro
Open in Playground

FAQ

Common questions about Mistral Large 4 vs Seed 2.1 Pro.

Which is better, Mistral Large 4 or Seed 2.1 Pro?

Mistral Large 4 and Seed 2.1 Pro are closely matched on the LLM Stats Score at 46.2 and 45.8. Mistral Large 4 is made by Mistral AI 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 Mistral Large 4 compare to Seed 2.1 Pro in benchmarks?

Mistral Large 4 scores B3 AI Security Benchmark: 93.3%, CyBench: 93.0%, SciCode: 91.8%, KORABench: 84.5%, CyberGym: 82.0%. 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 Mistral Large 4 and Seed 2.1 Pro?

Mistral Large 4 supports 1.0M 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 Mistral Large 4 and Seed 2.1 Pro?

Key differences include LLM Stats Score (46.2 vs 45.8). See the full comparison above for benchmark-by-benchmark results.

Who makes Mistral Large 4 and Seed 2.1 Pro?

Mistral Large 4 is developed by Mistral AI and Seed 2.1 Pro is developed by ByteDance.

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