Claude Haiku 4.5 vs Claude Opus 4.8

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 Opus 4.8 Anthropic's Opus-tier model (May 2026) with improved coding, agentic, and honesty behavior over Opus 4.7.
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	+ Vendor-reported gains on coding and agentic benchmarks (Terminal-Bench 2.1, 84% on Online-Mind2Web) + Improved honesty; more likely to acknowledge missing information and flag flaws in its own code + Standard pricing unchanged from Opus 4.7 ($5 input / $25 output per million tokens), with a cheaper fast mode than before
Tradeoffs	− Weaker on complex reasoning vs Sonnet/Opus − Lower context window than Sonnet	− Superseded as Anthropic's top model by Claude Fable 5 (June 2026) for the most demanding long-horizon work − API-only commercial model; no open weights
Used in stacks	4	0