Claude 3.5 Haiku vs o3

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

o3 by OpenAI wins on 10 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, o3 scores 1380 on Chatbot Arena ELO compared to Claude 3.5 Haiku's 1180, while o3 scores 84.0% on MMLU-Pro compared to Claude 3.5 Haiku's 60.0%.

Coding: In coding, o3 scores 90.0% on HumanEval+ compared to Claude 3.5 Haiku's 74.0%, while o3 scores 69.1% on SWE-bench Verified compared to Claude 3.5 Haiku's 22.0%, while o3 scores 70.0% on LiveCodeBench compared to Claude 3.5 Haiku's 28.0%.

Math: In math, o3 scores 96.0% on MATH compared to Claude 3.5 Haiku's 62.0%, while o3 scores 98.5% on GSM8K compared to Claude 3.5 Haiku's 84.0%.

Reasoning: In reasoning, o3 scores 83.3% on GPQA Diamond compared to Claude 3.5 Haiku's 35.0%, while o3 scores 75.7% on ARC-AGI compared to Claude 3.5 Haiku's 12.0%, while o3 scores 95.8% on BBH compared to Claude 3.5 Haiku's 82.9%.

Context: In context, both score 200K on Context Length.

Pricing Comparison

Claude 3.5 Haiku costs $0.80/1M input tokens and $4.0/1M output tokens, while o3 costs $2.0/1M input and $8.0/1M 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 o3's 40 tok/s, and the time to first token is 100 ms for Claude 3.5 Haiku versus 800 ms for o3. 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, o3 is the stronger choice.

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Claude 3.5 Haiku vs o3 — FAQ

Which is better, Claude 3.5 Haiku or o3?

o3 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 3.5 Haiku compare to o3 for coding?

o3 is better for coding, scoring 69.1% 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 o3?

Yes, Claude 3.5 Haiku is cheaper. Claude 3.5 Haiku costs $0.80/1M input and $4.0/1M output tokens. o3 costs $2.0/1M input and $8.0/1M output tokens.

Which is faster, Claude 3.5 Haiku or o3?

Claude 3.5 Haiku is faster, generating output at 170 tok/s compared to 40 tok/s. Faster output speed means shorter wait times for API responses.

What benchmarks does the Claude 3.5 Haiku vs o3 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.