Anthropic's cheapest Haiku costs 10x more than GPT-6 Luna, and agents care
Balance- · reddit · 2026-10-05
- A Redditor compares bottom-tier pricing: GPT-6 Luna charges $0.10/M input and $0.50/M output tokens, while Claude Haiku 4.5 costs $1/$5 — a 10x gap that also holds for cache reads ($0.01 vs $0.10).
- The argument: agents route most of their token volume to small, fast worker models, so this 10x gap can decide which vendor gets picked; a better Haiku at the same $1/$5 price won't fix it.
- Anthropic has been cutting prices higher up (Opus 5.5 at $4/$20, down from $5/$25), but the Haiku tier hasn't moved; Haiku 5.5 is due in weeks with no pricing announced yet.
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