Claude Haiku 5.5

Anthropic's cheapest Claude 5.5-family model, cutting small-prompt pricing up to 90% versus Haiku 4.5 with a 1M-token context.

Anthropic · Frontier/foundation models · model

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Overview

Anthropic released Claude Haiku 5.5 on October 7, 2026, the small/cheap tier of its Claude 5.5 lineup. For prompts under 100,000 tokens it prices at $0.10 per million input tokens and $0.50 per million output tokens, a 90% cut versus that pricing band on Haiku 4.5; for prompts over 100,000 tokens it rises to $0.50/$2.50 per million tokens. Accounting for how the new model tokenizes text, Anthropic puts typical real-world savings versus Haiku 4.5 at around 75%. The model ships with up to a 1-million-token context window and is available through Anthropic's standard API and cloud-platform integrations (AWS Bedrock, Google Cloud Vertex AI, Microsoft Foundry). Alongside the launch, Anthropic cut Claude Sonnet 5.5 cache-read pricing to $0.10 per million tokens and introduced a new monthly API credit for Claude Max and Team subscribers.

This is a sourced directory entry. Features and capabilities are reported in the linked sources; this entry does not document independent Aymorphic testing.

Key features

  • Up to 1,000,000-token context window
  • $0.10/$0.50 per million input/output tokens for prompts under 100K tokens
  • $0.50/$2.50 per million input/output tokens for prompts over 100K tokens
  • ~75% typical cost reduction versus Claude Haiku 4.5
  • Available via Anthropic API, AWS Bedrock, Google Cloud Vertex AI, and Microsoft Foundry

Use cases

  • High-volume, latency-sensitive tasks such as classification and extraction
  • Cost-constrained agentic workflows and sub-agent calls
  • Long-context document processing at low per-token cost

Pricing

$0.10/million input and $0.50/million output tokens for prompts under 100K tokens; $0.50/$2.50 per million above that threshold.

Pricing reflects the source record and may change. Confirm current terms with the provider.

Dates and sources

Released
7 Oct 2026
Record updated
10 Oct 2026
Record last checked
10 Oct 2026

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