Changed
Claude Opus 5.5 is the Opus every default reaches for now, and it runs at max. (#8684)
Every rung that named claude-opus-5 now names claude-opus-5-5: the visual-engineering, artistry, unspecified-high and writing category chains, the Sisyphus, Oracle, Metis and Momus agent chains, the senpi-task category and builtin-agent tables, unspecified-high's builtin config, and the Capable model profile. The rungs that ran at xhigh run at max, because that is the level Opus 5.5 is recommended at. Claude Opus 5 stays selectable and keeps its own prompt variant; it is no longer what you get without asking.
The writing category chain is Fable 5.1, then Opus 5.5, then Opus 4.6. (#8684)
writing ran Fable 5.1 at low, then Kimi K3 at low, then Opus 4.6 at low. It now runs Fable 5.1 at low, then Claude Opus 5.5 at low, then Claude Opus 4.6 at max, so prose work stays inside the Claude family end to end. The chain was declared in two places that had drifted apart - model-core and senpi-task disagreed on both the rungs and their levels - and both now read the same three rungs.
A Claude Opus 5.5 session no longer introduces itself as Opus 5. (#8684)
Opus 5.5 routes to the Opus 5 orchestrator prompt, which is right - the Opus 5 patterns carry over - but its self-knowledge block hardcoded the name and id of the earlier model, so the running model was told it was something else. The block now names whichever of the two is running. Telemetry gained the new id while keeping the old one, so a session on an older pinned engine is still recorded rather than masked to custom.
- 33d9e8a Merge pull request #8688 from code-yeongyu/release/v5.0.0-beta.84-source-state
- ab90188 Merge pull request #8686 from code-yeongyu/feat/claude-opus-5-5-defaults
- bb0bd45 fix(omo-opencode): correct Copilot model ID in fallback test (5-5 → 5.5)
- e8fe8e8 feat(omo-opencode): Opus 5.5 at max for the OpenCode edition category table
- 8cd3394 docs(changelog): record the Opus 5.5 default swap and the writing chain
- 5c70585 docs: point every Opus recommendation at Claude Opus 5.5 at max
- cbd91b1 feat(model-core): Claude Opus 5.5 becomes the default Opus at max
- 0b5d3d3 test(model-core): RED for Claude Opus 5.5 as the default Opus
- f83ca97 Merge pull request #8685 from code-yeongyu/fix/8671-dag-lock-rebase
- 810c342 Merge pull request #8683 from code-yeongyu/feat/8654-adopt-subscription-rename
- 6a83a1f test(packed-install): read the engine's builtin extension from its renamed directory
- 0937609 fix(omo-native): follow the renamed engine symbols and refresh the derived artifacts
- 11ca688 docs(provider): speak the renamed subscription providers, and regenerate the bundles
- e616503 feat(config): migrate omo.jsonc provider ids to the renamed subscription lanes
- 50442da feat(telemetry): teach the vocabulary the renamed providers, keep the old ids
- eae7d0c feat(routing): speak the renamed subscription providers in every shipped chain
npm i -g omo-ai@beta