Claude Haiku 5.5
Summary
Claude Haiku 5.5 is a proprietary language model from Anthropic, released on 7 Oct 2026. It accepts text, images and PDFs and generates text, with a 1M-token context window and up to 128K output tokens per response. As of 17 Oct 2026, the lowest listed API price is $0.10 per million input tokens and $0.50 per million output tokens (Claude API), across 7 providers we track.
Fast Claude model for responsive assistance, classification, and lightweight agents
Last verified 17 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | Anthropic |
|---|---|
| Release date | 7 Oct 2026 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Proprietary (API only) [models.dev] |
| Context window | 1M (1,000,000 tokens) [models.dev] |
| Max output | 128K tokens [models.dev] |
| Knowledge cutoff | Jun 2026 [models.dev] |
| Input | Text, images and PDFs [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | Yes [models.dev] |
| Tool calling | Yes [models.dev] |
| Structured output | Yes [models.dev] |
Claude Haiku 5.5 API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| Claude API claude-haiku-5-5 | $0.10 | $0.50 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Azure AI Foundry claude-haiku-5-5 | $0.10 | $0.50 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Vertex AI (Claude) claude-haiku-5-5@default | $0.10 | $0.50 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Google Vertex AI claude-haiku-5-5@default | $0.10 | $0.50 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Amazon Bedrock global.anthropic.claude-haiku-5-5 | $0.10 | $0.50 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Amazon Bedrock anthropic.claude-haiku-5-5 | $0.10 | $0.50 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Vercel AI Gateway anthropic/claude-haiku-5.5 | $0.10 | $0.50 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| OpenRouter anthropic/claude-haiku-5.5 | $0.10 | $0.50 | $0.01 | 1M | OpenRouter, 17 Oct 2026 |
| Amazon Bedrock au.anthropic.claude-haiku-5-5 | $0.11 | $0.55 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Amazon Bedrock us.anthropic.claude-haiku-5-5 | $0.11 | $0.55 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Amazon Bedrock eu.anthropic.claude-haiku-5-5 | $0.11 | $0.55 | $0.01 | 1M | models.dev, 17 Oct 2026 |
| Amazon Bedrock jp.anthropic.claude-haiku-5-5 | $0.11 | $0.55 | $0.01 | 1M | models.dev, 17 Oct 2026 |
Frequently asked questions
What is the context window of Claude Haiku 5.5?
Claude Haiku 5.5 has a context window of 1,000,000 tokens (1M) and can generate up to 128,000 tokens in a single response, according to models.dev.
How much does the Claude Haiku 5.5 API cost?
Through Claude API, Claude Haiku 5.5 costs $0.10 per million input tokens and $0.50 per million output tokens. Prices last verified 17 Oct 2026.
Is Claude Haiku 5.5 open source?
No. Claude Haiku 5.5 is a proprietary model; Anthropic has not released its weights. It is available through APIs including Claude API, Azure AI Foundry, Vertex AI (Claude), Google Vertex AI.
When was Claude Haiku 5.5 released?
Anthropic released Claude Haiku 5.5 on 7 Oct 2026, according to models.dev.
Which providers offer Claude Haiku 5.5?
We track Claude Haiku 5.5 on 7 providers: Claude API, Azure AI Foundry, Vertex AI (Claude), Google Vertex AI, Amazon Bedrock, Vercel AI Gateway, OpenRouter.
Change history
- Now listed on OpenRouter
- Now listed on Claude API
- Now listed on Azure AI Foundry
- Now listed on Vercel AI Gateway
- Now listed on Vertex AI (Claude)
- Now listed on Amazon Bedrock
- Added to the directory
- Now listed on Amazon Bedrock
- Now listed on Amazon Bedrock
- Now listed on Amazon Bedrock
- Now listed on Amazon Bedrock
- Now listed on Google Vertex AI
- Now listed on Amazon Bedrock
Sources
- https://github.com/sst/models.dev/blob/dev/providers/anthropic/models/claude-haiku-5-5.toml
- https://github.com/sst/models.dev/blob/dev/providers/azure/models/claude-haiku-5-5.toml
- https://github.com/sst/models.dev/blob/dev/providers/google-vertex-anthropic/models/claude-haiku-5-5@default.toml
- https://github.com/sst/models.dev/blob/dev/providers/google-vertex/models/claude-haiku-5-5@default.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/global.anthropic.claude-haiku-5-5.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/anthropic.claude-haiku-5-5.toml
- https://github.com/sst/models.dev/blob/dev/providers/vercel/models/anthropic/claude-haiku-5.5.toml
- https://openrouter.ai/anthropic/claude-haiku-5.5
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/au.anthropic.claude-haiku-5-5.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/us.anthropic.claude-haiku-5-5.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/eu.anthropic.claude-haiku-5-5.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/jp.anthropic.claude-haiku-5-5.toml