Claude 3.5 Haiku vs Gemini 2.5 Pro

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

Gemini 2.5 Pro by Google wins on 11 of 15 benchmarks against Claude 3.5 Haiku by Anthropic, which leads on 4. 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, Gemini 2.5 Pro scores 1465 on Chatbot Arena ELO compared to Claude 3.5 Haiku's 1180, while Gemini 2.5 Pro scores 84.0% on MMLU-Pro compared to Claude 3.5 Haiku's 60.0%.

Coding: In coding, Gemini 2.5 Pro scores 89.0% on HumanEval+ compared to Claude 3.5 Haiku's 74.0%, while Gemini 2.5 Pro scores 63.8% on SWE-bench Verified compared to Claude 3.5 Haiku's 22.0%, while Gemini 2.5 Pro scores 58.0% on LiveCodeBench compared to Claude 3.5 Haiku's 28.0%.

Math: In math, Gemini 2.5 Pro scores 88.0% on MATH compared to Claude 3.5 Haiku's 62.0%, while Gemini 2.5 Pro scores 95.5% on GSM8K compared to Claude 3.5 Haiku's 84.0%.

Reasoning: In reasoning, Gemini 2.5 Pro scores 84.0% on GPQA Diamond compared to Claude 3.5 Haiku's 35.0%, while Gemini 2.5 Pro scores 48.0% on ARC-AGI compared to Claude 3.5 Haiku's 12.0%, while Gemini 2.5 Pro scores 94.5% on BBH compared to Claude 3.5 Haiku's 82.9%.

Context: In context, Gemini 2.5 Pro scores 1.0M on Context Length compared to Claude 3.5 Haiku's 200K.

Pricing Comparison

Claude 3.5 Haiku costs $0.80/1M input tokens and $4.0/1M output tokens, while Gemini 2.5 Pro costs $1.3/1M input and $10.0/1M output. Claude 3.5 Haiku is the more affordable option for API usage.

Speed Comparison

Claude 3.5 Haiku generates output at 170 tok/s compared to Gemini 2.5 Pro's 55 tok/s, and the time to first token is 100 ms for Claude 3.5 Haiku versus 500 ms for Gemini 2.5 Pro. Claude 3.5 Haiku delivers faster throughput.

Verdict

For developers prioritizing affordability and speed, Claude 3.5 Haiku has the edge. For those who value coding and general intelligence and math, Gemini 2.5 Pro is the stronger choice.

Claude 3.5 Haiku vs Gemini 2.5 Pro — FAQ

Which is better, Claude 3.5 Haiku or Gemini 2.5 Pro?

Gemini 2.5 Pro wins on more benchmarks overall (11 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.

How does Claude 3.5 Haiku compare to Gemini 2.5 Pro for coding?

Gemini 2.5 Pro is better for coding, scoring 63.8% on SWE-bench Verified compared to 22.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.

Is Claude 3.5 Haiku cheaper than Gemini 2.5 Pro?

Yes, Claude 3.5 Haiku is cheaper. Claude 3.5 Haiku costs $0.80/1M input and $4.0/1M output tokens. Gemini 2.5 Pro costs $1.3/1M input and $10.0/1M output tokens.

Which is faster, Claude 3.5 Haiku or Gemini 2.5 Pro?

Claude 3.5 Haiku is faster, generating output at 170 tok/s compared to 55 tok/s. Faster output speed means shorter wait times for API responses.

What benchmarks does the Claude 3.5 Haiku vs Gemini 2.5 Pro comparison cover?

This comparison covers 15 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, GPQA Diamond, SWE-bench Verified, Output Speed, LiveCodeBench, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.