Seed 2.1 Turbo vs Sonar Reasoning Pro: side-by-side summary

Seed 2.1 Turbo and Sonar Reasoning Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Seed 2.1 Turbo, from bytedance-seed, has a 262,144-token context window and is priced at $0.50/M tokens input, $2.50/M tokens output on OpenRouter.

Sonar Reasoning Pro, from Perplexity, has a 128,000-token context window and is priced at $2/M tokens input, $8/M tokens output on OpenRouter.

Context window

• Seed 2.1 Turbo: 262,144 tokens
• Sonar Reasoning Pro: 128,000 tokens

Price

• Seed 2.1 Turbo: $0.50/M tokens input, $2.50/M tokens output
• Sonar Reasoning Pro: $2/M tokens input, $8/M tokens output

Provided by

• Seed 2.1 Turbo: bytedance-seed
• Sonar Reasoning Pro: Perplexity

• Seed 2.1 Turbo model details, providers and pricing
• Sonar Reasoning Pro model details, providers and pricing