Gemini 3.1 Pro vs GPT-6 Astra
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.1 Pro by Google and GPT-6 Astra by OpenAI are evenly matched across 8 benchmarks. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
General Intelligence: In general intelligence, GPT-6 Astra scores 52.8 on AA Intelligence Index compared to Gemini 3.1 Pro's 30.4.
Coding: In coding, GPT-6 Astra scores 76.9 on AA Coding Index compared to Gemini 3.1 Pro's 68.8.
Reasoning: In reasoning, Gemini 3.1 Pro scores 94.4% on GPQA Diamond compared to GPT-6 Astra's 94.4%, while GPT-6 Astra scores 51.5 on AA Agentic Index compared to Gemini 3.1 Pro's 10.3.
Context: In context, GPT-6 Astra scores 1.1M on Context Length compared to Gemini 3.1 Pro's 1.0M.
Pricing Comparison
Gemini 3.1 Pro costs $2.0/1M input tokens and $12.0/1M output tokens, while GPT-6 Astra costs $10.0/1M input and $50.0/1M output. Gemini 3.1 Pro is the more affordable option for API usage.
Verdict
Gemini 3.1 Pro leads across the board in affordability, making it the stronger overall choice in this comparison.
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Gemini 3.1 Pro vs GPT-6 Astra — FAQ
Which is better, Gemini 3.1 Pro or GPT-6 Astra?
Gemini 3.1 Pro and GPT-6 Astra are evenly matched across benchmarks. The best choice depends on your specific priorities such as coding ability, speed, or pricing.
How does Gemini 3.1 Pro compare to GPT-6 Astra 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 GPT-6 Astra?
Yes, Gemini 3.1 Pro is cheaper. Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output tokens. GPT-6 Astra costs $10.0/1M input and $50.0/1M output tokens.
Which is faster, Gemini 3.1 Pro or GPT-6 Astra?
Output speed data is not available for both models. Check the speed section of the comparison above for available performance data.
What benchmarks does the Gemini 3.1 Pro vs GPT-6 Astra comparison cover?
This comparison covers 8 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, AA Intelligence Index, AA Coding Index, AA Agentic Index, Cached Input Cost. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.