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Add Claude Fable 5.2 support on OpenCode 1, OpenCode 2 and Pi - #687
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Use a distinct catalogue and recovery family, default medium effort, Claude Code per-turn betas and no fast mode. Cache reads are /bin/bash.20/M per Anthropic's Fable 5.2 model page. Keep existing model snapshots byte-identical. Extend the existing Fable 5.1 fallback transition test to run for both 5.1 and 5.2, retaining its original assertions and strengthening the notice labels. OC2 catalogue registration remains host-owned by explicit scope decision; test native variants and requests when its catalogue supplies the model.
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Add Claude Fable 5.2 support on OpenCode 1, OpenCode 2 and Pi. Worker delivery rebased onto main; see the commit messages.
Summary by cubic
Adds Claude Fable 5.2 (
claude-fable-5-2) support on OpenCode 1, OpenCode 2, and Pi with its own catalogue entry: $8/M input, $40/M output, $0.20/M cache reads, 1M context window, and 128K max output tokens. Requests are sent the way Claude Code sends them — adaptive thinking, medium default effort, per-message effort markers, and Anthropic's safety fallback; fast mode stays off until Anthropic enables it for subscription accounts.Written for commit 5f0b731. Summary will update on new commits.