Anthropic releases Claude Haiku 5.5 at lower prices than GPT-6 Luna
Anthropic launched Claude Haiku 5.5 on October 7, 2026, a faster and cheaper model than its predecessor, Haiku 4.5, which was released nearly a year ago. The new model matches GPT-6 Luna’s pricing—$0.10 per million input tokens and $0.50 per million output tokens—up to 100,000 tokens. Beyond that limit, prices rise sharply: $0.50/$2.50 for Haiku 5.5, compared to $0.20/$0.75 for Luna at 272,000…
Key points
- Claude Haiku 5.5 matches GPT-6 Luna’s pricing up to 100,000 tokens at $0.10/$0.50 per million
- Token count increases by 1.25x due to a new tokenizer, raising hidden costs for long prompts
- Anthropic offers monthly API credits to subscribers: $100 for Max 5x, $200 for Max 20x, $500 for Team
Anthropic also introduced API credits for subscribers: Max 5x users get $100/month, Max 20x users receive $200/month, and Team subscribers get up to $500/month, pooled across users. The credits match subscription costs and don’t roll over. The company also halved the price of cache reads for Sonnet 5.5 and added an option to disable auto-reload for API requests, preventing unexpected billing surprises. The author tested Haiku 5.5’s speed and cost, noting a low-effort pelican SVG generated in 7 seconds for 0.0936 cents, while a max-effort version took 5 minutes 9 seconds for 3.3826 cents.
Model pages: Claude Haiku 5.5 → · GPT-6 Luna → · Sonnet 5.5 →
The story so far
7 episodes →- Anthropic releases Claude Haiku 5.5 at lower prices than GPT-6 Lunathis story
Claude Haiku 5.5
Simon Willison · 7 October 2026
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