chore(routing): route balanced-tier work to Claude Sonnet 5.5 - #268
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Sonnet 5.5 (released 2026-09-28) keeps Sonnet 5's per-token price ($2/$10) but leads it on every first-party benchmark checked (GDPval-AA, OSWorld, Terminal-Bench, CursorBench, Chartography) with lower tool-use overhead. Swap the balanced-tier default (specification, review, release) the same way Opus 5 -> Opus 5.5 moved in #234: new model becomes the catalog's balanced entry, claude-sonnet-5 demotes to tier:'prior' for user pins. - src/lib/pricing.mjs: own price row for claude-sonnet-5-5 (prevents future silent mis-pricing via the prefix matcher even though rates match today) - src/lib/routing.mjs: MODEL_CATALOG + DEFAULT_ROUTES swap - src/lib/model-inventory/discovery/anthropic-catalog.mjs: new catalog entry - docs/providers.md, docs/adr/0006, README.md, src/commands/x/host.mjs: model-id references - tests: new pricing-row test, updated hardcoded expectations that followed the default/catalog move Full research + citations in docs/plans/2026-09-28-sonnet-5-5-routing-refresh.md. qe-court seat models and ruflo's internal router are unaffected (upstream/ AQE-owned, not routed through this policy). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This was referenced Sep 29, 2026
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Summary
ak'sbalanced-tier default (specification,review,release) fromclaude-sonnet-5toclaude-sonnet-5-5, mirroring how Opus 5 → Opus 5.5 moved in feat(models): Opus 5.5 and GPT-6 Sol/Luna pricing and current-generation defaults #234: the new model becomes the catalog'sbalancedentry,claude-sonnet-5demotes totier: 'prior'and stays listed for user pins.sonnetreference exists inqeCourt.mjsor any qe-court config, so QE-Court seat models (upstream/AQE-owned) and ruflo's internal router are unaffected. What changes isak's own per-activity policy, consumed byak runand projected into AQE'sagentOverridesfor the QE agents mapped toreview/specification.docs/plans/2026-09-28-sonnet-5-5-routing-refresh.md(moves todocs/archive/per repo convention once this merges).Test plan
pnpm test(full suite, coverage-enforced) — greenpnpm run typecheck— greenpnpm run lint— green (no new warnings)pnpm run lint:md— greentests/kit/pricing.test.mjs) mirrors the existing Opus 5.5 own-key testtests/kit/routing-primary.test.mjsandtests/kit/model-discovery-claude-codex.test.mjsthat followed the default/catalog move🤖 Generated with Claude Code