Compare models
Put models side by side on price, context, capabilities, and benchmarks.
GPT-5.2 Pro is the extended-reasoning tier of GPT-5.2, trading latency for maximum accuracy on hard problems. It is aimed at complex research, coding, and analytical work with OpenAI's largest available context window.
Claude Haiku 4.5 is Anthropic's fast, affordable small model in the Claude 4 generation, balancing strong instruction-following and coding ability with low latency. It is designed for high-throughput agentic and chat applications where speed and cost efficiency are priorities.
Benchmarks
Head-to-head scores across reasoning, coding, and agentic indices, plus per-domain rankings.