Claude Haiku 4.5 vs Claude Sonnet 4.6

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.	Claude Sonnet 4.6 Anthropic's workhorse coding/agent model; strong tool use, long context.
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	+ Excellent tool-use and structured-output reliability + Long context supports large codebases / document sets + Best-in-class for agentic coding workflows
Tradeoffs	− Weaker on complex reasoning vs Sonnet/Opus − Lower context window than Sonnet	− More expensive than Haiku for high-volume classification − API-only (no on-prem / open weights)
Used in stacks	4	19