Claude Opus 4.6 vs Sonar Reasoning Pro

Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.

Claude Opus 4.6 by Anthropic wins on 3 of 5 benchmarks against Sonar Reasoning Pro by Perplexity, which leads on 2. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.

Category-by-Category Breakdown

Context: In context, Claude Opus 4.6 scores 200K on Context Length compared to Sonar Reasoning Pro's 128K.

Pricing Comparison

Claude Opus 4.6 costs $5.0/1M input tokens and $25.0/1M output tokens, while Sonar Reasoning Pro costs $2.0/1M input and $8.0/1M output. Sonar Reasoning Pro is the more affordable option for API usage.

Speed Comparison

Claude Opus 4.6 generates output at 68 tok/s compared to Sonar Reasoning Pro's 22 tok/s, and the time to first token is 1680 ms for Claude Opus 4.6 versus 2380 ms for Sonar Reasoning Pro. Claude Opus 4.6 delivers faster throughput.

Verdict

For developers prioritizing speed, Claude Opus 4.6 has the edge. For those who value affordability, Sonar Reasoning Pro is the stronger choice.

Claude Opus 4.6 vs Sonar Reasoning Pro — FAQ

Which is better, Claude Opus 4.6 or Sonar Reasoning Pro?

Claude Opus 4.6 wins on more benchmarks overall (3 vs 2). However, the best choice depends on your specific needs — each model excels in different areas.

How does Claude Opus 4.6 compare to Sonar Reasoning Pro for coding?

SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.

Is Claude Opus 4.6 cheaper than Sonar Reasoning Pro?

Yes, Sonar Reasoning Pro is cheaper. Claude Opus 4.6 costs $5.0/1M input and $25.0/1M output tokens. Sonar Reasoning Pro costs $2.0/1M input and $8.0/1M output tokens.

Which is faster, Claude Opus 4.6 or Sonar Reasoning Pro?

Claude Opus 4.6 is faster, generating output at 68 tok/s compared to 22 tok/s. Faster output speed means shorter wait times for API responses.

What benchmarks does the Claude Opus 4.6 vs Sonar Reasoning Pro comparison cover?

This comparison covers 5 benchmarks including Output Speed, Time to First Token, Input Cost, Output Cost, Context Length. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.