Move the CI agent model to gpt-5.6-terra - #31
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The live suites pinned gpt-5.4 and gpt-5.4-mini. gpt-5.6-terra is the current mini-tier model -- a generation newer than both, with a 1.05M context window against $2.50/$15 per 1M tokens -- so the split between the two old pins no longer buys anything and every suite moves to the same model. Realtime is not a supported endpoint for terra. That does not affect the voice suite, which drives Realtime through gpt-realtime-2 rather than the agent's chat model, but it rules terra out for any realtime path. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
dimavrem22
marked this pull request as ready for review
July 28, 2026 21:44
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Summary
Moves every live-suite agent model pin to
gpt-5.6-terra.The workflows pinned two different models —
gpt-5.4on the a2a and channels suites,gpt-5.4-minion voice and external-events.gpt-5.6-terrais the current mini tier and a generation newer than both, so that split stops buying anything and all four suites converge on one model.gpt-5.6-terraCaveat worth recording
Realtime is not a supported endpoint for terra (nor Assistants, fine-tuning, embeddings, or the audio/image generation surfaces; Chat Completions and Batch are supported).
This does not affect the voice suite — it drives Realtime through
gpt-realtime-2, a separate model from the agent's chat model — but it rules terra out for anything pointed at a realtime path.Scope
CI workflow pins only. No plugin runtime, no gateway, no API change, no version bump.
Deliberately not included: the Delphi Hermes gateway default in
servers(infra/variables.tf), which moved togpt-5.6-solearlier today for price parity with 5.5. That is a production agent on the full tier; dropping it to mini is a product decision rather than a CI cleanup.Source: GPT-5.6 Terra model card