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o1-pro vs Seed 2.0 Mini

o1-pro and Seed 2.0 Mini are closely matched at 19.8 and 27.9 on the LLM Stats Score.

OpenAI · ByteDance · Updated for 2026

Which is better?

o1-pro and Seed 2.0 Mini are closely matched on the overall LLM Stats Score at 19.8 and 27.9.

In the 1 individual benchmarks reported for both models, Seed 2.0 Mini wins 1; 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 o1-pro

  • you are already invested in the OpenAI ecosystem

Choose Seed 2.0 Mini

  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Feb 2026

At a glance

The differences that matter most.

Core performance indexes
19.8
#197
27.9
#135
20.1
#188
28.8
#123
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
— / M
$0.10 / M
Output price
— / M
$0.40 / M
Context window
256,000

Individual benchmarks

2 reported for o1-pro · 83 for Seed 2.0 Mini

1 shared

o1-pro outperforms in 0 benchmarks, while Seed 2.0 Mini is better at 0 benchmarks.

Both models are evenly matched across the benchmarks.

Wed Sep 09 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Seed 2.0 Mini specifies input context (256,000 tokens). Only Seed 2.0 Mini specifies output context (256,000 tokens).

OpenAI
o1-pro
Input- tokens
Output- tokens
ByteDance
Seed 2.0 Mini
Input256,000 tokens
Output256,000 tokens
Wed Sep 09 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both o1-pro and Seed 2.0 Mini support multimodal inputs.

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

o1-pro

Text
Images
Audio
Video

Seed 2.0 Mini

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.

o1-pro

Proprietary

Closed source

Seed 2.0 Mini

Proprietary

Closed source

Release Timeline

When each model was launched

o1-pro was released on 2024-12-17, while Seed 2.0 Mini was released on 2026-02-17.

Seed 2.0 Mini is 14 months newer than o1-pro.

o1-pro

Dec 17, 2024

1.7 years ago

Seed 2.0 Mini

Feb 17, 2026

6 months ago

1.2yr newer

Knowledge Cutoff

When training data ends

o1-pro has a documented knowledge cutoff of 2023-09-30, while Seed 2.0 Mini's cutoff date is not specified.

We can confirm o1-pro's training data extends to 2023-09-30, but cannot make a direct comparison without Seed 2.0 Mini's cutoff date.

o1-pro

Sep 2023

Seed 2.0 Mini

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against o1-pro and Seed 2.0 Mini side-by-side, then vote on the output you prefer.

o1-pro
✓ Preferred
Seed 2.0 Mini
Open in Playground

FAQ

Common questions about o1-pro vs Seed 2.0 Mini.

Which is better, o1-pro or Seed 2.0 Mini?

o1-pro and Seed 2.0 Mini are closely matched on the LLM Stats Score at 19.8 and 27.9. o1-pro is made by OpenAI and Seed 2.0 Mini is made by ByteDance. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does o1-pro compare to Seed 2.0 Mini in benchmarks?

o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%. Seed 2.0 Mini scores CountBench: 95.5%, VLMsAreBlind: 93.1%, Graphwalks parents <128k: 93.0%, CharXiv-D: 91.9%, LongFact Concepts: 91.4%.

What are the context window sizes for o1-pro and Seed 2.0 Mini?

o1-pro supports an unknown number of tokens and Seed 2.0 Mini supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between o1-pro and Seed 2.0 Mini?

Key differences include LLM Stats Score (19.8 vs 27.9). See the full comparison above for benchmark-by-benchmark results.

Who makes o1-pro and Seed 2.0 Mini?

o1-pro is developed by OpenAI and Seed 2.0 Mini is developed by ByteDance.