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Seed 2.1 Turbo vs GPT 6 Astra

At a glance

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

262K ctx$0.50/$2.50 per M

OpenAI's new flagship for demanding end-to-end work: advanced analysis, software engineering, deep research, scientific work, and document creation.

1.1M ctx$10.00/$50.00 per M
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
Cheaper95%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Specs
262K
Context
236K
Max output
Aug 2026
Released
1.1M
Context
128K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input95%$0.50/M tokens
Output95%$2.50/M tokens
Live pricing, shown before you run
Input$10.00/M tokens
Output$50.00/M tokens
Cache read$1.00/M tokens
Cache write$12.50/M tokens
Web search$0.01/search
Chat with Seed 2.1 TurboGo to model
Chat with GPT 6 AstraGo to model
Frequently Asked Questions: Seed 2.1 Turbo vs GPT 6 Astra▼

Which is better, Seed 2.1 Turbo or GPT 6 Astra?

▼

Both Seed 2.1 Turbo and GPT 6 Astra 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 is cheaper, Seed 2.1 Turbo or GPT 6 Astra?

▼

Seed 2.1 Turbo has a lower blended cost. Seed 2.1 Turbo: $0.50 input / $2.50 output. GPT 6 Astra: $10.00 input / $50.00 output.

Which has a larger context window, Seed 2.1 Turbo or GPT 6 Astra?

▼

GPT 6 Astra has a larger context window: Seed 2.1 Turbo supports 262K tokens vs GPT 6 Astra at 1.1M tokens.

Do both Seed 2.1 Turbo and GPT 6 Astra support vision?

▼

Yes, both Seed 2.1 Turbo and GPT 6 Astra support vision/image input.

What are the key differences between Seed 2.1 Turbo and GPT 6 Astra?

▼

Key differences: Seed 2.1 Turbo is significantly cheaper. 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 GPT 6 Astra for free on idapt.app to see which performs better for your specific needs.

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