Research3 sources
5d agoAnthropic Launches Claude Haiku 5.5
Claude Haiku 5.5 costs $0.10 per million input tokens, matching GPT-6 Luna. This price drop offsets a less efficient tokenizer that increases token counts by 1.25x over the previous version. Anthropic implements a 5x price hike for prompts exceeding 100,000 tokens.
The Signal
Developers must recalculate long-context costs to avoid hidden expenses.