Models
Anthropic's new Haiku costs a tenth as much, except with long texts
Claude Haiku 5.5 matches the price of GPT-6 Luna on short texts and is much cheaper than its predecessor. But above 100,000 tokens it gets more expensive, and its new tokenizer counts more.
The essentials
2 confirmed facts · 1 according to the source · 2 open questions
- It costs $0.10 per million input tokens and $0.50 per million output tokens up to 100,000 tokens; Haiku 4.5 charged $1 and $5.12
- Above 100,000 tokens it rises to $0.50 and $2.50. GPT-6 Luna, with the same short-text price, goes up later and by less.12
- According to the sourceAnthropic says it scores 72.4% on OSWorld 2.1 (offline computer use), compared with 15.7% for Haiku 4.5.1
Why it matters
If this holds up, Anthropic's small model now competes with GPT-6 Luna on price for short texts. With long texts, according to Simon Willison, Luna is better value. It's worth measuring what you send before choosing.2
The details
Anthropic launched it on October 7 and aims it at high-volume tasks, such as summarizing or classifying texts1. There is a catch: its new tokenizer, which splits text into pieces, counts more tokens for the same text: around 30% more, according to MarkTechPost1. Anthropic calculates that, with that adjustment, it works out 75% cheaper on average1.
What we don't know
- Whether the performance figures hold up when someone outside Anthropic checks them.
- How much more the new tokenizer really adds to the cost: MarkTechPost says 30% more and Simon Willison says 1.25 times.
Sources
- 1Anthropic Releases Claude Haiku 5.5: A Small Model With 1M Context Priced at $0.10 per Million Input Tokens
- 2Claude Haiku 5.5
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