← Back to Agents
AnthropicNotable
Claude in Chrome
Released Aug 25, 2025
Chrome extension that lets Claude navigate sites, fill forms and complete tasks autonomously in the user's browser, with a safety classifier checking each action.
Also in Frontier Features →- Domain
- Browser
- Access
- Generally available
- Plan
- Pro $20/mo
Strengths & weaknesses
Strengths
- GA on every paid Claude plan
- Prompt-injection attack success 0% for Sonnet 5 / Opus 5 / Mythos 5 with probes and classifier (0.3% for Fable 5), per Anthropic
- Admin controls with domain allow/blocklists
Weaknesses
- Google Chrome only — not other Chromium browsers or mobile
- Uses plan limits faster than chat
Notable: frontier-lab developer (Anthropic). Pilot 2025-08-25 (1,000 Max users), beta for all Max 2025-11-24, Pro/Team/Enterprise 2025-12-18, GA 2026-08-26. GA post names several Claude models only in its prompt-injection evals, not as the model the product runs on, so underlyingModels left empty (user chooses the Claude model).