CHORUS/docs/decisions/2026-02-26-resetdata-model-freeze.md

DR: ResetData Model Freeze for March 8 Bootstrap Release

Date: February 26, 2026 Status: Accepted Scope: March 8 bootstrap release window

Decision

Freeze the release model pair to:

• Primary: openai/gpt-oss-120b
• Fallback: zai-org/glm-4.7-fp8

Why

• Both models were validated live against https://app.resetdata.ai/api/v1/chat/completions with HTTP 200.
• penai/gpt-oss-120b returned model_not_found; remove ambiguity and standardize on known-good IDs.
• Existing compose defaults already used openai/gpt-oss-120b; align Go default to the same model.

Validation snapshot

Probe run date: February 26, 2026 (UTC)

• zai-org/glm-4.7-fp8 -> 200
• openai/gpt-oss-120b -> 200
• penai/gpt-oss-120b -> 404 (model_not_found)
• meta/llama-3.1-8b-instruct -> 200
• google/gemma-3-27b-it -> 200

Implementation updates

• Updated Go default model:
  • pkg/config/config.go
• Updated bootstrap gate validations:
  • testing/march8_bootstrap_gate.sh
• Updated release board:
  • docs/progress/MARCH8-BOOTSTRAP-RELEASE-BOARD.md

Consequences

• All release validation and e2e runs must use the frozen pair until March 8, 2026.
• Any model change before release must open a new decision record and rerun live gate + evidence capture.

UCXL reference

ucxl://arbiter:release-coordinator@CHORUS:march8-bootstrap/#/docs/decisions/2026-02-26-resetdata-model-freeze.md