Claude Code 2.1.289 overstates Haiku 5.5 costs 17x by falling back to Opus pricing
Sufficient-Storage87 · reddit · 2026-10-11
A Reddit user ran Haiku 5.5 on 24 real bug tasks in Claude Code v2.1.289: the CLI's cost readout totaled $56.83, but repricing from token counts at Anthropic's API list prices gave just $3.24. The cause: the version logs unrecognizedmodel for claude-haiku-5-5 and falls back to Opus pricing — a display bug, not a billing bug, but misleading enough that the author almost switched models. Fixed in 2.1.295 (check with claude --version). The same version also reads Sonnet cache costs 10% high.
More from coding & agent
- 817 structured cybersecurity skills turn Claude Code, Copilot and Cursor into senior security analysts — tom_doerr · 2026-10-12
- Harvard's CS2680 teaches modern AI agents from Claude Code down to KV cache and quantization — CurieuxExplorer · 2026-10-12
- The debugging sequence: how to investigate sudden AI quality drops step by step — goyalshaliniuk · 2026-10-12
- How to get all 3 free Anthropic Claude certifications in about 9 hours — Arindam_1729 · 2026-10-12
- One Prompt: Claude Code Publishes a Real Instagram Post via Custom MCP Server — Dull_Alps_8522 · 2026-10-12
- SoftwareGym synthesizes 182 app environments, lifting CUA OSWorld Pass@3 to 56.97% — Tian Jin · 2026-10-12