Claude Haiku 4.5 vs GPT-5

Pick two tools from the same category to compare side-by-side.

	Claude Haiku 4.5 Fast, cheap small model for classification, routing, high-volume work.	GPT-5 OpenAI's frontier model; broad capability, strong tool use.
Category	model	model
Vendor type	commercial	commercial
Pricing	usage	usage
Strengths	+ Lowest cost in Claude family + Low latency suitable for real-time interactions + Strong instruction-following for its size	+ First-class integration with OpenAI Agents SDK and Codex CLI + Broad ecosystem of tooling and integrations
Tradeoffs	− Weaker on complex reasoning vs Sonnet/Opus − Lower context window than Sonnet	− Lock-in to OpenAI platform features (e.g., Responses API)
Used in stacks	4	0