Pi v0.79.3 caps OpenAI context metadata
Pi v0.79.3 resolves incorrect context window metadata inherited by OpenAI GPT-5.4/GPT-5.5 and Codex GPT-5.4/GPT-5.4 mini/GPT-5.5 models. The update caps these models at the observed 272k-token Codex backend limit to avoid potential billing hazards from oversized prompts exceeding the backend constraints.
Minor updates normally focus on small bug fixes, but this release highlights the practical friction developers face with LLM providers' shifting token limits and undocumented API constraints.
- –Capping context limits at 272k tokens prevents costly over-billing hazards where long prompts fail or get handled inefficiently.
- –Undocumented backend limits of OpenAI Codex show that even advanced LLM infrastructure requires client-side workarounds to ensure cost-efficiency and stability.
- –Maintaining accurate token-counting metadata is critical for agent toolkits like Pi that make multiple iterative LLM calls, as out-of-bounds errors can crash long-running agent workflows.
DISCOVERED
1h ago
2026-06-13
PUBLISHED
2h ago
2026-06-13
RELEVANCE
AUTHOR
PiChangelog