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+pr: 1847
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+**Claude Sonnet 5 is now the `standard` (sonnet) tier model.** The model catalog and provider presets resolve the sonnet/standard tier to `claude-sonnet-5` (GA 2026-06-30) across the Anthropic-backed runtimes (`claude`, `copilot`, and the `anthropic`/`anthropic-fable` presets), plus the OpenRouter-style `anthropic/claude-sonnet-5` for `opencode`/`hermes`, replacing the superseded `claude-sonnet-4-6`. Opus and Haiku tiers are unchanged. (#1847)