Claude Haiku 4.5

Available

AnthropicProprietary

Anthropic's fast, low-cost Claude 4.5 model, released in October 2025 for latency-sensitive coding, tool-use, and customer-facing agent workloads. Anthropic positions it as bringing near-Sonnet capability to the Haiku tier at substantially lower cost and higher speed.

Official page ↗Model card ↗

Specifications

License: Proprietary
Weights: Not released
Architecture: unknown
Parameters: Undisclosed
Context window: 200K tokens
Max output: —
Knowledge cutoff: —
Price (in / out, $/M): $1 / $5
Modalities: TextVisionCode

Benchmarks

No benchmark scores recorded yet. Spotted some? Submit a correction.

Vendor-reported figures are claims until independently verified. See methodology.