[AINews] Claude Haiku 5.5 — better than GPT-6 Luna at the same pricing
It’s been about a year since Anthropic shipped Haiku 4.5, and with successive launches of Sonnet and Opus and Fable up to 5.5 it was seeming a little forgotten, especially as OpenAI launched Luna 6 alongside Astra and Sol 6.

Proof5 independent outlets
Key points
- Official launch. @claudeai and @AnthropicAI called it “the cheapest, fastest, and most capable small model we’ve ever released,” costing about 75% less to run than Haiku 4.5 on average.
- As previously promised, here's Anthropic's new fast, low cost model: Introducing Claude Haiku 5.5.
- Today, we’re excited to announce the availability of Claude Haiku 5.5 on Amazon Bedrock and Claude Platform on AWS.
- Anthropic PBC today released Claude Haiku 5.5, pricing its newest small model at roughly a quarter of what Haiku 4.5 costs to run.
Sources (5)
- [1][AINews] Claude Haiku 5.5 — better than GPT-6 Luna at the same pricingLatent Space · Oct 8, 07:27 AM
It’s been about a year since Anthropic shipped Haiku 4.5, and with successive launches of Sonnet and Opus and Fable up to 5.5 it was seeming a little forgotten, especially as OpenAI launched Luna 6 alongside Astra and Sol 6.
- Official launch. @claudeai and @AnthropicAI called it “the cheapest, fastest, and most capable small model we’ve ever released,” costing about 75% less to run than Haiku 4.5 on average.
- [2]Claude Haiku 5.5Simon Willison's Weblog · Oct 7, 08:56 PM
As previously promised, here's Anthropic's new fast, low cost model: Introducing Claude Haiku 5.5.
- [3]Introducing Claude Haiku 5.5 on AWSAWS Machine Learning Blog · Oct 7, 06:52 PM
Today, we’re excited to announce the availability of Claude Haiku 5.5 on Amazon Bedrock and Claude Platform on AWS.
- [4]Anthropic releases Claude Haiku 5.5 small model and halves Sonnet 5.5 cache read pricesSiliconANGLE: AI · Oct 7, 10:28 PM
Anthropic PBC today released Claude Haiku 5.5, pricing its newest small model at roughly a quarter of what Haiku 4.5 costs to run.
- [5]AI off the Charts IIAI Supremacy · Oct 9, 09:20 AM
Extractive summary: sentences quoted from the sources.
Hype check
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Before this
- Oct 7, 2026browser-use/browser-use 0.13.11
- Oct 6, 2026llm-openai-decisions 0.1a0
- Oct 6, 2026[AINews] Reflection Beam - 501B-A23B American Open Model
- Oct 5, 2026Anthropic Subscriptions Offer 5x+ More Value Than OpenAI
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