Abacus AI CodeLLM
Hosted IDE from Abacus AI that runs Claude 4 Opus as its default backend agent (the Composer Agent) with multimodel routing, MCP support, built-in auth, and a polished web UI. Positioned as a Cursor alternative for users who want Opus quality without Cursor’s pricing or Claude Code’s CLI surface.
- Site: codellm.abacus.ai
- Vendor: Abacus AI
- Pricing: ~$10/month (bundles CodeLLM + ChatLLM + Deep Agent + Computer Agent — verify current tier before citing)
Features
- Composer Agent — Claude 4 Opus by default; Sonnet, Gemini 2.5 Pro, OpenAI models routable per task
- Chat Mode — conversational pair programming, separate from inline edits
- In-place inline edits + tab autocomplete
- MCP support out of the box
- Computer Agent — bundled browser-use equivalent
- Built-in auth & UI — no separate Supabase wiring for simple apps
Why it matters
CodeLLM is a data point in two wiki threads:
- Planning-first AI coding — running Opus by default in a hosted IDE validates that the strongest models pair best with structured planning surfaces vs raw chat. Sibling claim to Claude Code Ultra Plan.
- SaaS death spiral — bundling four AI products at $10 is the kind of pricing that breaks per-seat models. Worth watching whether the bundle holds.
Caveats
- Closed-source, hosted only
- “Outperforms Cursor on SWE-bench” claim is from Abacus marketing — treat as positioning until third-party benchmark exists
- Pricing tier may have shifted since the source video
Sources
- Claude 4 Opus + Composer Agent: Full-stack App Without ANY Code — WorldofAI walkthrough; wallpaper app demo
See Also
- Claude — the model
- Cursor — direct competitor
- Claude Code — alternative Opus surface
- Firebase Studio — sibling hosted-IDE-with-AI-agent product
- SaaS Death Spiral