Compare models
Put models side by side on price, context, capabilities, and benchmarks.
GPT-6 Astra Pro is OpenAI's flagship GPT-6 Astra served with reasoning mode set to "pro" for higher-quality answers on the hardest tasks, keeping the same 1.05M-token context window and $10/$50 per-million input/output pricing as the base model. It targets demanding end-to-end work such as advanced analysis, software engineering, deep research, scientific work, and long-horizon agentic tasks involving computer and browser use, trading extra latency and reasoning cost for maximum quality.
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.