Model Comparison

Gemini 3.1 Pro vs Seed 2.0 ProWhich is better in 2026?

Gemini 3.1 Pro significantly outperforms across most benchmarks. Seed 2.0 Pro is 5.0x cheaper per token.

Verdict: Gemini 3.1 Pro vs Seed 2.0 Pro — which is better?

Gemini 3.1 Pro (by Google) and Seed 2.0 Pro (by ByteDance) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 3.1 Pro outperforms in 3 benchmarks (BrowseComp, GPQA, SWE-Bench Verified), while Seed 2.0 Pro is better at 0 benchmarks. Gemini 3.1 Pro significantly outperforms across most benchmarks.

On price, Seed 2.0 Pro is roughly 5.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.1 Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 3.1 Pro if…

  • you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Feb 2026

Choose Seed 2.0 Pro if…

  • cost matters — it's about 5.0x cheaper per token

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Gemini 3.1 Pro outperforms in 3 benchmarks (BrowseComp, GPQA, SWE-Bench Verified), while Seed 2.0 Pro is better at 0 benchmarks.

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Wed Jul 22 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Seed 2.0 Pro costs less

For input processing, Gemini 3.1 Pro ($2.50/1M tokens) is 5.0x more expensive than Seed 2.0 Pro ($0.50/1M tokens).

For output processing, Gemini 3.1 Pro ($15.00/1M tokens) is 5.0x more expensive than Seed 2.0 Pro ($3.00/1M tokens).

In conclusion, Gemini 3.1 Pro is more expensive than Seed 2.0 Pro.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Jul 22 2026 • llm-stats.com
Google
Gemini 3.1 Pro
Input tokens$2.50
Output tokens$15.00
Best providerGoogle
ByteDance
Seed 2.0 Pro
Input tokens$0.50
Output tokens$3.00
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.1 Pro accepts 1,048,576 input tokens compared to Seed 2.0 Pro's 256,000 tokens. Both models can generate responses up to 65,536 tokens.

Google
Gemini 3.1 Pro
Input1,048,576 tokens
Output65,536 tokens
ByteDance
Seed 2.0 Pro
Input256,000 tokens
Output65,536 tokens
Wed Jul 22 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3.1 Pro and Seed 2.0 Pro support multimodal inputs.

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

Gemini 3.1 Pro

Text
Images
Audio
Video

Seed 2.0 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.

Gemini 3.1 Pro

Proprietary

Closed source

Seed 2.0 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while Seed 2.0 Pro was released on 2026-02-14.

Gemini 3.1 Pro is 0 month newer than Seed 2.0 Pro.

Gemini 3.1 Pro

Feb 19, 2026

5 months ago

5d newer
Seed 2.0 Pro

Feb 14, 2026

5 months ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a knowledge cutoff of 2025-01-31, while Seed 2.0 Pro has a cutoff of 2024-01-01.

Gemini 3.1 Pro has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to Seed 2.0 Pro (2024-01-01).

Gemini 3.1 Pro

Jan 2025

1 yr newer
Seed 2.0 Pro

Jan 2024

Provider Availability

Gemini 3.1 Pro is available from Google. Seed 2.0 Pro is available from DeepInfra.

Gemini 3.1 Pro

google logo
Google
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

Seed 2.0 Pro

deepinfra logo
Deepinfra
Input Price:Input: $0.50/1MOutput Price:Output: $3.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (1,048,576 tokens)
Higher BrowseComp score (85.9% vs 77.3%)
Higher GPQA score (94.3% vs 88.9%)
Higher SWE-Bench Verified score (80.6% vs 76.5%)
ByteDance
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 3.1 Pro and Seed 2.0 Pro side-by-side, then vote on the output you prefer.

Gemini 3.1 Pro
✓ Preferred
Seed 2.0 Pro
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 3.1 Pro
ByteDance
Seed 2.0 Pro

FAQ

Common questions about Gemini 3.1 Pro vs Seed 2.0 Pro.

Which is better, Gemini 3.1 Pro or Seed 2.0 Pro?

Gemini 3.1 Pro significantly outperforms across most benchmarks. Gemini 3.1 Pro is made by Google and Seed 2.0 Pro is made by ByteDance. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3.1 Pro compare to Seed 2.0 Pro in benchmarks?

Gemini 3.1 Pro scores t2-bench: 99.3%, LiveCodeBench Pro: 96.2%, GPQA: 94.3%, MMMLU: 92.6%, BrowseComp: 85.9%. Seed 2.0 Pro scores AIME 2025: 98.3%, AIME 2026: 94.2%, GPQA: 88.9%, LiveCodeBench v6: 87.8%, BrowseComp: 77.3%.

Is Gemini 3.1 Pro cheaper than Seed 2.0 Pro?

Seed 2.0 Pro is 5.0x cheaper for input tokens. Gemini 3.1 Pro costs $2.50/M input and $15.00/M output via google. Seed 2.0 Pro costs $0.50/M input and $3.00/M output via deepinfra.

What are the context window sizes for Gemini 3.1 Pro and Seed 2.0 Pro?

Gemini 3.1 Pro supports 1.0M tokens and Seed 2.0 Pro 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 Gemini 3.1 Pro and Seed 2.0 Pro?

Key differences include context window (1.0M vs 256K), input pricing ($2.50 vs $0.50/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Pro and Seed 2.0 Pro?

Gemini 3.1 Pro is developed by Google and Seed 2.0 Pro is developed by ByteDance.

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