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Codex alpha sends incremental tool catalogs and keeps MCP resource helpers available

The alpha artifact incorporates Responses Lite catalog diffs and Code Mode resource-helper fixes. Changed tool declarations can be sent without repeating the entire catalog. These are prerelease runtime changes, not a claim that every account has access to Responses Lite or a new speed tier.

Published 3 sources

Primary source

OpenAI · October 3, 2026

Read the original: Codex alpha 10 artifact

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