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Claude API

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AI ModelsClaude Haiku 5.5: Pricing, Specs, Benchmarks and What ChangedClaude Haiku 5.5 is Anthropic's fastest, cheapest model: $0.10 in, $0.50 out per 1M tokens, 1M context, effort levels. Specs, benchmarks and migration notes.Oct 18, 2026 · 5 min read