Claude Haiku 4.5 vs Claude Sonnet 4.5
We don't benchmark Claude Haiku 4.5 or Claude Sonnet 4.5 on Vision Evals. Both are proprietary under Proprietary, so commercial use per vendor terms. Claude Haiku 4.5 is cheaper per token ($1/M vs $3/M input). Test them side by side on your own images below.
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Claude Haiku 4.5 vs Claude Sonnet 4.5 Comparison Table
Pricing updated November 11, 2026
| Property | Claude Haiku 4.5 | Claude Sonnet 4.5 |
|---|---|---|
| Organization | Anthropic | Anthropic |
| Category | closed | closed |
| Modality | multimodal | multimodal |
| Release Date | Oct 2025 | Sep 2025 |
| Context Window | 200K | 200K |
| Parameters | Unknown | Unknown |
| License | Proprietary | Proprietary |
| Commercial use | commercial use per vendor terms | commercial use per vendor terms |
| Pricing per 1M tokens | ||
| Input $/1M | $1.00 | $3.00 |
| Output $/1M | $5.00 | $15.00 |
| Vision Tasks | ||
| Model Features | ||
Both support 3 more features | ||
Claude Haiku 4.5 vs Claude Sonnet 4.5: Overview
Claude Haiku 4.5 is Anthropic’s lightweight model in the Claude 4.5 series, released in October 2025 under a proprietary license. Designed for speed and cost efficiency, it delivers near-frontier performance while maintaining Anthropic’s AI Safety Level 2 standard. Haiku 4.5 supports both text and multimodal (text and image) inputs, integrates tool use and extended reasoning, and features a 200,000 token context window, making it adept at handling long or complex workflows. Haiku 4.5 is ideal for developers and researchers seeking rapid, cost-effective model calls for analysis, coding, or multimodal understanding.
Claude Sonnet 4.5, released by Anthropic in September 2025, is the company’s most advanced Sonnet-series model, built for high-performance reasoning, coding, and long-horizon agentic workflows. It is a multimodal system that accepts both text and images, with a 200,000-token context window designed for handling large documents and extended interactions. Anthropic highlights its improvements in reliability, reduced sycophancy, and alignment, making it suitable for sustained enterprise use.
It introduces infrastructure features such as a memory tool (beta), checkpointing for Claude Code, parallel tool use, and tighter integration with VS Code. Compared to Opus, which targets broader reasoning, Sonnet 4.5 is optimized for structured, long-duration tasks. Positioned against leading offerings from OpenAI and Google, it is aimed at enterprise automation, software engineering, and research-intensive applications.