Author's Description
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance across reasoning, coding, and computer-use tasks, Haiku 4.5 brings frontier-level capability to real-time and high-volume applications. It introduces extended thinking to the Haiku line; enabling controllable reasoning depth, summarized or interleaved thought output, and tool-assisted workflows with full support for coding, bash, web search, and computer-use tools. Scoring >73% on SWE-bench Verified, Haiku 4.5 ranks among the world’s best coding models while maintaining exceptional responsiveness for sub-agents, parallelized execution, and scaled deployment.
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
Claude Haiku 4.5 demonstrates strong overall performance, particularly excelling in speed and reliability. It consistently performs among the fastest models, ranking in the 68th percentile across benchmarks, and exhibits exceptional reliability with a 100% success rate, indicating minimal technical failures. While its pricing is moderate, ranking in the 25th percentile, its efficiency often translates to cost-effectiveness for its capabilities. The model showcases remarkable accuracy in specific areas. It achieves perfect scores in Hallucinations (100%) and Ethics (100%), highlighting its ability to acknowledge uncertainty and adhere to ethical principles. Haiku 4.5 also performs very well in Coding (91% accuracy) and Mathematics (93% accuracy), aligning with its description as a strong coding model. Its instruction following (70%) and reasoning (76%) capabilities are solid, contributing to its "near-frontier intelligence." General Knowledge (99%) is also a strong suit, while Email Classification (97%) is competent. Its extended thinking capabilities, controllable reasoning depth, and tool-assisted workflows further enhance its utility for real-time and high-volume applications.
Model Pricing
Current Pricing
Feature | Price (per 1M tokens) |
---|---|
Prompt | $1 |
Completion | $5 |
Input Cache Read | $0.1 |
Input Cache Write | $1.25 |
Price History
Available Endpoints
Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
---|---|---|---|---|
Anthropic
|
Anthropic | anthropic/claude-4.5-haiku-20251001 | 200K | $1 / 1M tokens | $5 / 1M tokens |
Google
|
Google | anthropic/claude-4.5-haiku-20251001 | 200K | $1 / 1M tokens | $5 / 1M tokens |
Amazon Bedrock
|
Amazon Bedrock | anthropic/claude-4.5-haiku-20251001 | 200K | $1 / 1M tokens | $5 / 1M tokens |
Benchmark Results
Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
---|
Other Models by anthropic
|
Released | Params | Context |
|
Speed | Ability | Cost |
---|---|---|---|---|---|---|---|
Anthropic: Claude Haiku 4.5 Unavailable | Oct 14, 2025 | — | 200K |
Image input
Text input
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|
— | — | $$$$$ |
Anthropic: Claude Sonnet 4.5 | Sep 29, 2025 | — | 1M |
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File input
Text output
|
★★ | ★★★★★ | $$$$$ |
Anthropic: Claude Opus 4.1 | Aug 05, 2025 | — | 200K |
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File input
Text output
|
★★ | ★★★★★ | +$$$$$ |
Anthropic: Claude Opus 4 | May 22, 2025 | — | 200K |
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File input
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|
★★ | ★★★★★ | +$$$$$ |
Anthropic: Claude Sonnet 4 | May 22, 2025 | — | 1M |
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|
★★★ | ★★★★★ | $$$$$ |
Anthropic: Claude 3.7 Sonnet | Feb 24, 2025 | — | 200K |
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★★★ | ★★★★★ | $$$$$ |
Anthropic: Claude 3.5 Haiku | Nov 03, 2024 | — | 200K |
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|
★★★★ | ★★★ | $$$$ |
Anthropic: Claude 3.5 Haiku (2024-10-22) | Nov 03, 2024 | — | 200K |
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|
★★★★ | ★★★ | $$$$ |
Anthropic: Claude 3.5 Sonnet | Oct 21, 2024 | ~400B | 200K |
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|
★★★ | ★★★★ | $$$$$ |
Anthropic: Claude 3.5 Sonnet (2024-06-20) | Jun 19, 2024 | ~400B | 200K |
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★★★★ | ★★★★ | $$$$$ |
Anthropic: Claude 3 Haiku | Mar 12, 2024 | ~20B | 200K |
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★★★★★ | ★★★ | $$$ |
Anthropic: Claude 3 Sonnet Unavailable | Mar 04, 2024 | ~200B | 200K |
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★★★★ | ★★★★ | $$$$$ |
Anthropic: Claude 3 Opus | Mar 04, 2024 | ~2T | 200K |
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|
★★★ | ★★★★ | +$$$$$ |
Anthropic: Claude v2 Unavailable | Nov 21, 2023 | 137B | 200K |
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|
★★ | ★★★★ | +$$$$$ |
Anthropic: Claude v2.1 Unavailable | Nov 21, 2023 | 137B | 200K |
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|
★★ | ★★★★ | +$$$$$ |
Anthropic: Claude v2.0 Unavailable | Jul 27, 2023 | 137B | 100K |
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|
★★★ | ★★★★ | +$$$$$ |