Claude Haiku 4.5
Anthropic🇺🇸 United States
Fastest and most cost-efficient Claude model.
Context window200K tokens
Input / 1M tokens$0.25
Output / 1M tokens$1.25
Version History
claude-haiku-4-5major
Fastest Claude yet with improved tool use and very low cost per token.
Benchmark Scores
Full leaderboard →50.1%
GPQA
81.5%
HumanEval
72.4%
MATH
78.2%
MMLU
187.0 tokens_per_sec
Speed (tok/s)
58.0%
SWE-bench Verified