Claude Haiku 4.5 vs Gemini 3.1 Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.1 Pro by Google wins on 10 of 14 benchmarks against Claude Haiku 4.5 by Anthropic, which leads on 4. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Gemini 3.1 Pro scores 1501 on Chatbot Arena ELO compared to Claude Haiku 4.5's 1220, while Gemini 3.1 Pro scores 92.6% on MMLU-Pro compared to Claude Haiku 4.5's 65.0%.
Coding: In coding, Gemini 3.1 Pro scores 93.0% on HumanEval+ compared to Claude Haiku 4.5's 78.0%, while Gemini 3.1 Pro scores 80.6% on SWE-bench Verified compared to Claude Haiku 4.5's 30.0%, while Gemini 3.1 Pro scores 75.0% on LiveCodeBench compared to Claude Haiku 4.5's 35.0%.
Math: In math, Gemini 3.1 Pro scores 93.0% on MATH compared to Claude Haiku 4.5's 70.0%, while Gemini 3.1 Pro scores 98.0% on GSM8K compared to Claude Haiku 4.5's 88.0%.
Reasoning: In reasoning, Gemini 3.1 Pro scores 94.1% on GPQA Diamond compared to Claude Haiku 4.5's 40.0%, while Gemini 3.1 Pro scores 77.1% on ARC-AGI compared to Claude Haiku 4.5's 18.0%.
Context: In context, Gemini 3.1 Pro scores 1.0M on Context Length compared to Claude Haiku 4.5's 200K.
Pricing Comparison
Claude Haiku 4.5 costs $1.0/1M input tokens and $5.0/1M output tokens, while Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output. Claude Haiku 4.5 is the more affordable option for API usage.
Speed Comparison
Claude Haiku 4.5 generates output at 180 tok/s compared to Gemini 3.1 Pro's 65 tok/s, and the time to first token is 120 ms for Claude Haiku 4.5 versus 420 ms for Gemini 3.1 Pro. Claude Haiku 4.5 delivers faster throughput.
Verdict
For developers prioritizing affordability and speed, Claude Haiku 4.5 has the edge. For those who value coding and general intelligence and math, Gemini 3.1 Pro is the stronger choice.
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Claude Haiku 4.5 vs Gemini 3.1 Pro — FAQ
Which is better, Claude Haiku 4.5 or Gemini 3.1 Pro?
Gemini 3.1 Pro wins on more benchmarks overall (10 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Haiku 4.5 compare to Gemini 3.1 Pro for coding?
Gemini 3.1 Pro is better for coding, scoring 80.6% on SWE-bench Verified compared to 30.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Haiku 4.5 cheaper than Gemini 3.1 Pro?
Yes, Claude Haiku 4.5 is cheaper. Claude Haiku 4.5 costs $1.0/1M input and $5.0/1M output tokens. Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output tokens.
Which is faster, Claude Haiku 4.5 or Gemini 3.1 Pro?
Claude Haiku 4.5 is faster, generating output at 180 tok/s compared to 65 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Haiku 4.5 vs Gemini 3.1 Pro comparison cover?
This comparison covers 14 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, SWE-bench Verified, GPQA Diamond, Output Speed, Time to First Token, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.