Claude 3.5 Haiku vs GPT-5.2
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
GPT-5.2 by OpenAI wins on 10 of 14 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 the AI Value Index.
Category-by-Category Breakdown
General Intelligence: In general intelligence, GPT-5.2 scores 1475 on Chatbot Arena ELO compared to Claude 3.5 Haiku's 1180, while GPT-5.2 scores 83.0% on MMLU-Pro compared to Claude 3.5 Haiku's 60.0%.
Coding: In coding, GPT-5.2 scores 95.0% on HumanEval+ compared to Claude 3.5 Haiku's 74.0%, while GPT-5.2 scores 80.0% on SWE-bench Verified compared to Claude 3.5 Haiku's 22.0%, while GPT-5.2 scores 80.0% on LiveCodeBench compared to Claude 3.5 Haiku's 28.0%.
Math: In math, GPT-5.2 scores 97.0% on MATH compared to Claude 3.5 Haiku's 62.0%, while GPT-5.2 scores 99.0% on GSM8K compared to Claude 3.5 Haiku's 84.0%.
Reasoning: In reasoning, GPT-5.2 scores 92.4% on GPQA Diamond compared to Claude 3.5 Haiku's 35.0%, while GPT-5.2 scores 54.2% on ARC-AGI compared to Claude 3.5 Haiku's 12.0%.
Context: In context, GPT-5.2 scores 400K 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 GPT-5.2 costs $1.8/1M input and $14.0/1M 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 GPT-5.2's 90 tok/s, and the time to first token is 100 ms for Claude 3.5 Haiku versus 380 ms for GPT-5.2. 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, GPT-5.2 is the stronger choice.
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Claude 3.5 Haiku vs GPT-5.2 — FAQ
Which is better, Claude 3.5 Haiku or GPT-5.2?
GPT-5.2 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 GPT-5.2 for coding?
GPT-5.2 is better for coding, scoring 80.0% 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 GPT-5.2?
Yes, Claude 3.5 Haiku is cheaper. Claude 3.5 Haiku costs $0.80/1M input and $4.0/1M output tokens. GPT-5.2 costs $1.8/1M input and $14.0/1M output tokens.
Which is faster, Claude 3.5 Haiku or GPT-5.2?
Claude 3.5 Haiku is faster, generating output at 170 tok/s compared to 90 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude 3.5 Haiku vs GPT-5.2 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.