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 ## M9: AI Experience
 
-- [ ] **M9.1** — Multi-model comparison mode (split-screen same prompt → 2 models, swipeable on mobile)
-- [ ] **M9.2** — System prompt editor / personas (named personas, model preference, accent, per-conversation)
-- [ ] **M9.3** — Prompt template library (`/` command palette, `{{variable}}` substitution, IDB-persisted)
-- [ ] **M9.4** — Vision input (drag-and-drop image, base64 in message content, only when model supports vision)
-- [ ] **M9.5** — Response feedback (thumbs up/down per message, stored in IDB, exported with conversations)
-- [ ] **M9.6** — Token & cost estimator (badge per message, running total in context bar, model pricing table)
-- [ ] **M9.7** — AI memory panel (pinned facts injected into every system prompt, encrypted IDB, max 20 items)
-- [ ] **M9.8** — Model capabilities badge (Vision / Tools / Long context badges in model selector)
-- [ ] **M9.9** — Temperature & params sliders (temperature, max tokens, top-P, persisted per conversation)
-- [ ] **M9.10** — Stop sequence configuration (comma-separated stop sequences in advanced settings)
-- [ ] **TEST:M9** — Run `pnpm test` and `pnpm typecheck && pnpm lint`. Fix all failures before proceeding.
+- [x] **M9.1** — Multi-model comparison mode (split-screen same prompt → 2 models, swipeable on mobile)
+- [x] **M9.2** — System prompt editor / personas (named personas, model preference, accent, per-conversation)
+- [x] **M9.3** — Prompt template library (`/` command palette, `{{variable}}` substitution, IDB-persisted)
+- [x] **M9.4** — Vision input (drag-and-drop image, base64 in message content, only when model supports vision)
+- [x] **M9.5** — Response feedback (thumbs up/down per message, stored in IDB, exported with conversations)
+- [x] **M9.6** — Token & cost estimator (badge per message, running total in context bar, model pricing table)
+- [x] **M9.7** — AI memory panel (pinned facts injected into every system prompt, encrypted IDB, max 20 items)
+- [x] **M9.8** — Model capabilities badge (Vision / Tools / Long context badges in model selector)
+- [x] **M9.9** — Temperature & params sliders (temperature, max tokens, top-P, persisted per conversation)
+- [x] **M9.10** — Stop sequence configuration (comma-separated stop sequences in advanced settings)
+- [x] **TEST:M9** — Run `pnpm test` and `pnpm typecheck && pnpm lint`. Fix all failures before proceeding.
 
 ## M10: Advanced Content Renderers