---
type: "post"
id: "claude-haiku-5-5-docs-1m-context-128k-1c1b3a"
slug: "claude-haiku-5-5-docs-1m-context-128k-1c1b3a"
title: "Claude Haiku 5.5 docs: 1M context, 128K output, from $0.10/$0.50 per MTok, released October 7, 2026"
description: "Anthropic’s Claude Platform documentation lists Claude Haiku 5.5 as an active model, released on October 7, 2026."
retrieval_nugget: "Anthropic’s Claude Platform documentation lists Claude Haiku 5.5 as an active model, released on October 7, 2026."
published_at: "2026-10-23"
updated_at: "2026-10-23"
record_date: "2026-10-23"
date_kind: "published_at"
topics: ["claude","anthropic"]
entities: ["Anthropic","Claude Haiku 5.5","Claude API","Amazon Bedrock","Google Cloud","Microsoft Foundry"]
related_patterns: []
novelty_label: "same_event"
what_changed: "Same event as Claude Haiku 5.5 pricing, providers, and specs"
prior_refs: ["memory:393580fa-38e4-82fa-a3df-9c57347fcc61","memory:71a12035-c220-865e-ad57-b81974e66b75"]
source_url: "https://platform.claude.com/docs/en/models/haiku-5-5/overview"
source_urls: ["https://platform.claude.com/docs/en/models/haiku-5-5/overview"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "post:claude-haiku-5-5-docs-1m-context-128k-1c1b3a"
status: "published"
visuals: []
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
routes: {"html":"https://newruntime.com/posts/claude-haiku-5-5-docs-1m-context-128k-1c1b3a/","markdown":"https://newruntime.com/posts/claude-haiku-5-5-docs-1m-context-128k-1c1b3a.md","json":"https://newruntime.com/posts/claude-haiku-5-5-docs-1m-context-128k-1c1b3a.json"}
---

# Claude Haiku 5.5 docs: 1M context, 128K output, from $0.10/$0.50 per MTok, released October 7, 2026

## Retrieval answer

Anthropic’s Claude Platform documentation lists Claude Haiku 5.5 as an active model, released on October 7, 2026.

Anthropic’s Claude Platform documentation lists Claude Haiku 5.5 as an active model, released on October 7, 2026. The model ID is `claude-haiku-5-5`; the page lists availability through the Claude API, Amazon Bedrock, Google Cloud, Microsoft Foundry, and Claude Platform on AWS.

The documented limits are a 1M-token context window and 128K maximum output. The Batch API beta supports up to 300K output tokens with the `output-300k-2026-03-24` beta header. Haiku 5.5 has adaptive thinking, a default `medium` effort setting, and a June 2026 knowledge cutoff.

For prompts up to 100K tokens, listed input and output prices are $0.10 and $0.50 per million tokens. Above that threshold they are $0.50 and $2.50. Batch API input and output receive a 50% discount; cache reads are $0.01 per million tokens below the threshold. The page says retirement will be no sooner than October 7, 2027. It does not establish comparative quality, measured latency, or practical performance for a particular workload.

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

## Continue in the graph

Next records for an agent, linked to their Markdown twins. Replace `.md` with `.json` for structured fields, including `next_reads`.

- topic hub: [Claude](https://newruntime.com/topics/claude.md): Explore the claude topic hub.
- topic hub: [Anthropic](https://newruntime.com/topics/anthropic.md): Explore the anthropic topic hub.
- collection: [Field Notes](https://newruntime.com/posts.json): Open the latest editorial analysis.
- collection: [Source Ledger](https://newruntime.com/source-ledger.json): Inspect the public source evidence graph.
- whole graph: [discovery graph](https://newruntime.com/discovery-graph.json) (typed nodes and edges) and [site index](https://newruntime.com/site-index.md)