Claude Haiku 5.5
Small, fast and inexpensive — built for subagents, summarization and browser use.
Claude Haiku 5.5 is Anthropic’s small, fast model for high-volume, cost-sensitive work such as summarization, subagents and browser use. It succeeds Claude Haiku 4.5 with stronger coding and computer use, and adds a 1M-token context window.
- Provider
- Anthropic
- Type
- Language model
- Released
- Oct 7, 2026
- Context window
- 1M tokens
- Max output
- 128K tokens
- Price
- $0.10 input / $0.50 output per 1M tokens
- Input
- text, image, file
- Output
- text
- Open weights
- No
- Knowledge cutoff
- Jun 1, 2026
Best for
- High volume / low cost
- Real-time / low latency
- Agents
- Extraction & classification
- Chat & assistants
- Coding
Strengths
- Very low cost per task
- High throughput
- 1M context in a small model
More from Anthropic
- Claude Opus 5.5 — Anthropic. Anthropic’s flagship for demanding reasoning, coding and long-horizon agents.
- Claude Sonnet 5.5 — Anthropic. Near-flagship intelligence at a mid-tier price; the everyday workhorse for builders.
- Claude Fable 5.1 — Anthropic. Premium model for long-running agentic workflows, refactors and visual front-end work.
- Claude Opus 5 — Anthropic. Previous-generation Opus; still a strong reasoning and coding model.
Tools that use it
- Claude Code — Anthropic. Agentic coding in your terminal, IDE and browser.