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Anthropic Releases Claude Haiku 4.5 Model

Anthropic has made Claude Haiku 4.5 available to all users, offering near-frontier performance with enhanced speed and cost efficiency.

By Illumora Editorial

Source · Jul 22, 2026, 1:05 AM · On Illumora · Jul 23, 2026, 1:43 AM

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Read the source →Anthropic News (priority) — Introducing Claude Haiku 4.5
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Anthropic has announced the release of Claude Haiku 4.5, its latest small model, now available to all users. This model is presented as a more economical and faster alternative, particularly for coding tasks, compared to previous iterations. It is accessible via the Claude API, Amazon Bedrock, and Google Cloud's Vertex AI.

Key Points

  • Claude Haiku 4.5 is available to all users starting today.
  • It offers coding performance similar to Claude Sonnet 4 at one-third the cost and more than twice the speed.
  • The model surpasses Claude Sonnet 4 in certain tasks, such as using computers.
  • Claude Haiku 4.5 achieves 90% of Sonnet 4.5's performance in Augment's agentic coding evaluation.
  • It runs up to 4-5 times faster than Sonnet 4.5 at a fraction of the cost.
  • In instruction-following for slide text generation, Claude Haiku 4.5 achieved 65% accuracy, compared to 44% from a premium tier model.
  • The model is released under the AI Safety Level 2 (ASL-2) standard, indicating limited risks for CBRN weapons production.

Context

According to Anthropic, Claude Haiku 4.5 provides a new option for users seeking near-frontier performance with greater cost-efficiency. It is positioned to enable new ways of using models together, such as orchestrating multiple Haiku 4.5s for subtasks after Sonnet 4.5 breaks down a complex problem. The model is designed for real-time, low-latency tasks like chat assistants, customer service agents, and pair programming.

Why It Matters

This release introduces a model that balances intelligence with speed and cost, potentially altering how developers approach AI-assisted development and agentic coding. The improved efficiency and performance for specific tasks, such as sub-agent orchestration and computer use, could enable more responsive and complex AI applications.

What To Do

  • Developers can use claude-haiku-4-5 via the Claude API to integrate the new model.
  • Note the pricing of $1/$5 per million input and output tokens for Claude Haiku 4.5.
  • Review the Claude Haiku 4.5 system card for detailed safety evaluations and the reasoning behind its ASL-2 classification.
  • Compare the performance and cost benefits of Haiku 4.5 against Haiku 3.5 and Sonnet 4 for existing applications on Amazon Bedrock and Google Cloud's Vertex AI.

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