Gemini 3.1 Pro vs Sonar Reasoning Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.1 Pro by Google wins on 3 of 5 benchmarks against Sonar Reasoning Pro by Perplexity, which leads on 1. 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, Gemini 3.1 Pro scores 1.0M on Context Length compared to Sonar Reasoning Pro's 128K.
Pricing Comparison
Gemini 3.1 Pro costs $2.0/1M input tokens and $12.0/1M output tokens, while Sonar Reasoning Pro costs $2.0/1M input and $8.0/1M output. Both models are priced identically for input tokens.
Speed Comparison
Gemini 3.1 Pro generates output at 65 tok/s compared to Sonar Reasoning Pro's 22 tok/s, and the time to first token is 420 ms for Gemini 3.1 Pro versus 2380 ms for Sonar Reasoning Pro. Gemini 3.1 Pro delivers faster throughput.
Verdict
Gemini 3.1 Pro leads across the board in speed, making it the stronger overall choice in this comparison.
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Gemini 3.1 Pro vs Sonar Reasoning Pro — FAQ
Which is better, Gemini 3.1 Pro or Sonar Reasoning Pro?
Gemini 3.1 Pro wins on more benchmarks overall (3 vs 1). However, the best choice depends on your specific needs — each model excels in different areas.
How does Gemini 3.1 Pro 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 Gemini 3.1 Pro cheaper than Sonar Reasoning Pro?
Both models are priced the same at $2.0/1M input tokens. Gemini 3.1 Pro output costs $12.0/1M and Sonar Reasoning Pro output costs $8.0/1M.
Which is faster, Gemini 3.1 Pro or Sonar Reasoning Pro?
Gemini 3.1 Pro is faster, generating output at 65 tok/s compared to 22 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Gemini 3.1 Pro 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.