Model Comparison

Grok 4.5 vs Seed 2.0 ProWhich is better in 2026?

Grok 4.5 significantly outperforms across most benchmarks. Seed 2.0 Pro is 2.7x cheaper per token.

Verdict: Grok 4.5 vs Seed 2.0 Pro — which is better?

Grok 4.5 (by xAI) 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.

Grok 4.5 outperforms in 1 benchmarks (GPQA), while Seed 2.0 Pro is better at 0 benchmarks. Grok 4.5 significantly outperforms across most benchmarks.

On price, Seed 2.0 Pro is roughly 2.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Grok 4.5 also accepts a larger context window (500,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Grok 4.5 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 500,000 token context window
  • you want the most recent training data — it shipped Jul 2026

Choose Seed 2.0 Pro if…

  • cost matters — it's about 2.7x cheaper per token

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Grok 4.5 outperforms in 1 benchmarks (GPQA), while Seed 2.0 Pro is better at 0 benchmarks.

Grok 4.5 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, Grok 4.5 ($2.00/1M tokens) is 4.0x more expensive than Seed 2.0 Pro ($0.50/1M tokens).

For output processing, Grok 4.5 ($6.00/1M tokens) is 2.0x more expensive than Seed 2.0 Pro ($3.00/1M tokens).

In conclusion, Grok 4.5 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
xAI
Grok 4.5
Input tokens$2.00
Output tokens$6.00
Best providerxAI
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

Grok 4.5 accepts 500,000 input tokens compared to Seed 2.0 Pro's 256,000 tokens. Only Seed 2.0 Pro specifies output context (65,536 tokens).

xAI
Grok 4.5
Input500,000 tokens
Output- 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 Grok 4.5 and Seed 2.0 Pro support multimodal inputs.

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

Grok 4.5

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.

Grok 4.5

Proprietary

Closed source

Seed 2.0 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Grok 4.5 was released on 2026-07-16, while Seed 2.0 Pro was released on 2026-02-14.

Grok 4.5 is 5 months newer than Seed 2.0 Pro.

Grok 4.5

Jul 16, 2026

6 days ago

5mo newer
Seed 2.0 Pro

Feb 14, 2026

5 months ago

Knowledge Cutoff

When training data ends

Grok 4.5 has a knowledge cutoff of 2026-02-01, while Seed 2.0 Pro has a cutoff of 2024-01-01.

Grok 4.5 has more recent training data (up to 2026-02-01), making it potentially better informed about events through that date compared to Seed 2.0 Pro (2024-01-01).

Grok 4.5

Feb 2026

2.1 yr newer
Seed 2.0 Pro

Jan 2024

Provider Availability

Grok 4.5 is available from xAI. Seed 2.0 Pro is available from DeepInfra.

Grok 4.5

xai logo
xAI
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M

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

xAI
Larger context window (500,000 tokens)
Higher GPQA score (93.0% vs 88.9%)
ByteDance
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Grok 4.5 and Seed 2.0 Pro side-by-side, then vote on the output you prefer.

Grok 4.5
✓ Preferred
Seed 2.0 Pro
Open in Playground
AI Model Comparison Table
Feature
xAI
Grok 4.5
ByteDance
Seed 2.0 Pro

FAQ

Common questions about Grok 4.5 vs Seed 2.0 Pro.

Which is better, Grok 4.5 or Seed 2.0 Pro?

Grok 4.5 significantly outperforms across most benchmarks. Grok 4.5 is made by xAI 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 Grok 4.5 compare to Seed 2.0 Pro in benchmarks?

Grok 4.5 scores GPQA: 93.0%, Terminal-Bench 2.1: 83.3%, Artificial Analysis Coding Agent Index v1.1: 76.0%, SWE-Bench Pro: 64.7%, AA-Omniscience Index: 63.0%. Seed 2.0 Pro scores AIME 2025: 98.3%, AIME 2026: 94.2%, GPQA: 88.9%, LiveCodeBench v6: 87.8%, BrowseComp: 77.3%.

Is Grok 4.5 cheaper than Seed 2.0 Pro?

Seed 2.0 Pro is 4.0x cheaper for input tokens. Grok 4.5 costs $2.00/M input and $6.00/M output via xai. Seed 2.0 Pro costs $0.50/M input and $3.00/M output via deepinfra.

What are the context window sizes for Grok 4.5 and Seed 2.0 Pro?

Grok 4.5 supports 500K 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 Grok 4.5 and Seed 2.0 Pro?

Key differences include context window (500K vs 256K), input pricing ($2.00 vs $0.50/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4.5 and Seed 2.0 Pro?

Grok 4.5 is developed by xAI and Seed 2.0 Pro is developed by ByteDance.

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