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Seed 1.6 vs Sonar Reasoning Pro

ByteDance vs Perplexity — benchmarks, pricing, and capabilities side by side.

  • Seed 1.6 is cheaper ($0.25 vs $2.00 per 1M input)
  • Seed 1.6 has a larger context window (262K)
Seed 1.6Sonar Reasoning Pro
Intelligence index95.7
DeveloperByteDancePerplexity
TypeMultimodalMultimodal
AccessAPI onlyAPI only
Context window262,144 tokens128,000 tokens
Input price$0.25 / 1M$2.00 / 1M
Output price$2.00 / 1M$8.00 / 1M
Speed
ReleasedDecember 23, 2025March 7, 2025
Parameters
Input modalitiesImage, Text, VideoText, Image
Output modalitiesTextText