{"slug": "claude-haiku-5-5-now-available-on-ai-gateway", "title": "Claude Haiku 5.5 now available on AI Gateway", "summary": "Anthropic's Claude Haiku 5.5 is now available on Vercel's AI Gateway under the model name anthropic/claude-haiku-5.5, positioned as a direct upgrade to Claude Haiku 4.5 for high-volume, cost-sensitive tasks such as summaries, context compaction, database queries, and classification. Haiku 5.5 is the first Haiku model with effort levels, supporting low, medium, high, xhigh, and max settings that control how much the model thinks and how many tokens it uses, with thinking optional at low, medium, and high but required at xhigh and max. The model supports Zero Data Retention on AI Gateway, ships with biology and cybersecurity safeguards, and is callable through the AI SDK, Chat Completions, Responses, and Anthropic Messages APIs or a connected coding agent.", "body_md": "[Claude Haiku 5.5](https://vercel.com/ai-gateway/models/claude-haiku-5.5) from [Anthropic](https://vercel.com/ai-gateway/models/providers/anthropic) is now available on [AI Gateway](https://vercel.com/ai-gateway).\n\nIt is built for high-volume, cost-sensitive tasks such as summaries, context compaction, database queries, and classification, and works as a subagent alongside larger Claude models on coding work. It is also the fastest Claude model at standard speed, which suits live customer support and browser use. Test it as a direct upgrade wherever you use [Claude Haiku 4.5](https://vercel.com/ai-gateway/models/claude-haiku-4.5) today.\n\nHaiku 5.5 is the first Haiku model with effort levels. It uses adaptive thinking and supports `low`, `medium`, `high`, `xhigh`, and `max` effort, which set how much the model thinks and how many tokens it uses. You can turn thinking off at `low`, `medium`, and `high`. At `xhigh` and `max`, thinking must stay on.\n\nHaiku 5.5 supports [Zero Data Retention](https://vercel.com/docs/ai-gateway/security-and-compliance/zdr) on AI Gateway. It ships with biology and cybersecurity safeguards, so it may decline some requests in those areas.\n\nCall it through the [AI SDK](https://vercel.com/docs/ai-gateway/sdks-and-apis/ai-sdk), the [Chat Completions](https://vercel.com/docs/ai-gateway/sdks-and-apis/openai-chat-completions), [Responses](https://vercel.com/docs/ai-gateway/sdks-and-apis/responses), and [Anthropic Messages](https://vercel.com/docs/ai-gateway/sdks-and-apis/anthropic-messages-api) APIs, or a [coding agent](https://vercel.com/docs/ai-gateway/coding-agents) connected to AI Gateway. Set effort with `reasoning` in the AI SDK or `reasoning_effort` in Chat Completions.\n\nUse `anthropic/claude-haiku-5.5` as the model name:\n\nTo use it in Claude Code, Codex, Cursor, and more, install the latest Vercel CLI and run setup:\n\nThen select `anthropic/claude-haiku-5.5` in the agent. See the [coding agents guide](https://vercel.com/docs/ai-gateway/coding-agents) for details.\n\nTry Claude Haiku 5.5 in the [model playground](https://vercel.com/ai-gateway/models/claude-haiku-5.5).\n\nAI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in [custom reporting](https://vercel.com/changelog/custom-reporting-ai-gateway), [Zero Data Retention support](https://vercel.com/blog/zdr-on-ai-gateway), [budgets for API keys](https://vercel.com/docs/ai-gateway/authentication-and-byok/api-keys), [routing rules](https://vercel.com/docs/ai-gateway/models-and-providers/routing-rules), and more.\n\nAI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on [Bring Your Own Key](https://vercel.com/docs/ai-gateway/authentication-and-byok/byok) (BYOK) requests.\n\nYou can view [all language models](https://vercel.com/ai-gateway/models?type=text) available on AI Gateway.", "url": "https://wpnews.pro/news/claude-haiku-5-5-now-available-on-ai-gateway", "canonical_source": "https://vercel.com/changelog/claude-haiku-5-5-now-available-on-ai-gateway", "published_at": "2026-10-07 00:00:00+00:00", "updated_at": "2026-10-10 00:28:38.117341+00:00", "lang": "en", "topics": ["ai-products", "large-language-models", "ai-tools", "generative-ai", "developer-tools"], "entities": ["Anthropic", "Claude Haiku 5.5", "Vercel", "AI Gateway", "Claude Haiku 4.5", "AI SDK", "Claude Code", "Cursor"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/claude-haiku-5-5-now-available-on-ai-gateway", "markdown": "https://wpnews.pro/news/claude-haiku-5-5-now-available-on-ai-gateway.md", "text": "https://wpnews.pro/news/claude-haiku-5-5-now-available-on-ai-gateway.txt", "jsonld": "https://wpnews.pro/news/claude-haiku-5-5-now-available-on-ai-gateway.jsonld"}}