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Seed 2.1 Turbo vs Grok 4.1 Fast

At a glance

ByteDance's multimodal model for coding and long-horizon agent workflows.

262K ctx$0.50/$2.50 per M

Fast agentic model with 2M context window and tool calling.

2M ctx
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
No benchmarks available

This model hasn't been benchmarked yet.

Specs
262K
Context
236K
Max output
Aug 2026
Released
2M
Context
33K
Max output
—
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$0.50/M tokens
Output$2.50/M tokens
Pricing not available
Chat with Seed 2.1 TurboGo to model
Chat with Grok 4.1 FastGo to model
Frequently Asked Questions: Seed 2.1 Turbo vs Grok 4.1 Fast▼

Which is better, Seed 2.1 Turbo or Grok 4.1 Fast?

▼

Both Seed 2.1 Turbo and Grok 4.1 Fast are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which has a larger context window, Seed 2.1 Turbo or Grok 4.1 Fast?

▼

Grok 4.1 Fast has a larger context window: Seed 2.1 Turbo supports 262K tokens vs Grok 4.1 Fast at 2M tokens.

Do both Seed 2.1 Turbo and Grok 4.1 Fast support vision?

▼

Yes, both Seed 2.1 Turbo and Grok 4.1 Fast support vision/image input.

What are the key differences between Seed 2.1 Turbo and Grok 4.1 Fast?

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Key differences: only Seed 2.1 Turbo offers extended reasoning mode. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Seed 2.1 Turbo and Grok 4.1 Fast for free on idapt.app to see which performs better for your specific needs.

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