Claude Haiku 5.5

claude-haiku-5-5

CHAT Light tier ReasoningMultimodal Proprietary (API-only)

Claude Haiku 5.5 (claude-haiku-5-5) is a chat model from anthropic with a 1M-token context window; proprietary (API-only); capabilities tools, vision, reasoning; input image, pdf, text; output text.

1MContext

128KMax output

$0.1$ / 1M in

Pricing

Input: $0.1 / 1M tokens
Output: $0.5 / 1M tokens
Currency: USD
Note: Indicative US list price — verify with the vendor.

Indicative US list price — a reference only, verify with the vendor. Source: litellm. Last verified 2026-10-30.

Specifications

Context window: 1,000,000 tokens (1M)
Max output: 128,000 tokens
Weights: Proprietary (API-only)
Input modalities: image pdf text
Output modalities: text
Knowledge cutoff: 2026-06
Release date: 2026-10-07

Capabilities

tools vision reasoning

Provenance

anthropic-apilitellmmodels-dev

Last verified: 2026-10-30

Related models

Claude Fable 5

claude-fable-5

anthropic · CHAT · 1M ctx

Claude Opus 4.8

claude-opus-4-8

anthropic · CHAT · 1M ctx

Claude Opus 4.7

claude-opus-4-7

anthropic · CHAT · 1M ctx

Claude Sonnet 5

claude-sonnet-5

anthropic · CHAT · 1M ctx

Claude Opus 4.6

claude-opus-4-6

anthropic · CHAT · 1M ctx

Claude Sonnet 4.6

claude-sonnet-4-6

anthropic · CHAT · 1M ctx

Markdown · Vendor JSON · Full catalog · All anthropic models