Changelog

2026-11-13 — Ren 1.1 (ren-1.1.0)

• Public model Ren uses semantic versions. Pin ren-1.1.0; ren-latest and ren-preview both resolve to it. Responses echo ren-1.1.0 in model and usage.model.
• GET /v1/models lists the full ID and both aliases with release_date: "2026-11-13".
• Unknown, shortened, and case-variant IDs return 400 unknown_model, naming all valid IDs.

2026-11-12 — API rules before go-live

• The gated number is probability, the chosen answer's probability. p and confidence are removed. For true/false, the probability of true is probabilities.true.
• Status codes: JSON nesting deeper than 64 is 400; option and level counts are 422; bodies over 4 MB and inputs over 2048 tokens stay 413. A request that can never succeed never receives 429.
• Unknown fields are rejected at every level. Every response carries X-Request-Id; errors are {code, message} and never repeat request content.
• Default rate limits rise to 300 requests per minute per key and 600 per account. 429 responses add retry-after-ms; decisions carry X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset.

2026-11-12 — private-beta integration draft

The documented gateway surface includes typed choice, score, and true/false decisions; full semantic model IDs and aliases; bearer authentication; input-token usage; and server-side routing thresholds.

ren-1.1.0 is the full release identifier used in examples. Deployment and account availability must be checked through GET /v1/models. This entry records a contract milestone, not a measured model-quality improvement or a deployment announcement.

Future model changes should record the new pinned ID and any changes to input handling, primitives, calibration, or gate behavior. Recheck your thresholds before adopting a new version.