IDEIDE & editor extensions
Windsurf
by Codeium
Supports 5 models · IDE · Freemium; Pro at $20/mo · Defaults: Claude Sonnet 4.6
Decision note
Windsurf is a proprietary IDE plug-in for AI-assisted coding, built by Codeium (released 2024-11). Windsurf integrates with 5 verified models, including Claude Sonnet 4.6, Gemini 2.5 Pro, and GPT-4.1. Pricing: Freemium; Pro at $20/mo. It runs as an extension in VS Code and JetBrains IDEs, pairing editor context with chat, completions, multi-file edits, and code review workflows for daily development.
Overview
Agentic IDE with a 'Cascade' agent that maintains awareness of the full development flow and can autonomously plan and execute multi-step coding tasks.
Best LLMs for this agent
Primary Cascade model
Pricing and Provider Comparison
Agent access tiers
| Tier | Price | Includes |
|---|---|---|
| Free | Free | 25 prompt credits/mo, 5 Cascade sessions/day, unlimited tab completions |
| Pro | $20/mo | Higher prompt credits, all models, Cascade multi-file editing |
| Max | $200/mo | Fast Context, Codemaps, Cascade, highest quotas |
| Teams | $40/mo | Admin analytics, knowledge base, centralized billing |
| Enterprise | Custom | SSO, RBAC, hybrid deployment, SOC 2 and HIPAA compliance |
Featured Model Specs
| Model | Lab | Released | Context | Reasoning | Openness |
|---|---|---|---|---|---|
| Claude Sonnet 4.6 | Anthropic | 2026-02-17 | 1m | Yes | Proprietary |
| Gemini 2.5 Pro | Google DeepMind | 2025-06-17 | 1m | Yes | Proprietary |
| GPT-4.1 | OpenAI | 2025-04-01 | 1.05m | No | Proprietary |
| DeepSeek R1 | DeepSeek | 2025-01-20 | 128k | Yes | Open source |
| GPT-4o (2024-11-20) | OpenAI | 2024-11-20 | 128k | No | Proprietary |
Model Compatibility Matrix
| Model | Lab | Default | Access tier | Notes |
|---|---|---|---|---|
| Claude Sonnet 4.6 | Anthropic | Yes | Pro | Primary Cascade model |
| Gemini 2.5 Pro | Google DeepMind | No | Pro | — |
| GPT-4.1 | OpenAI | No | Pro | — |
| DeepSeek R1 | DeepSeek | No | Pro | — |
| GPT-4o (2024-11-20) | OpenAI | No | Pro | — |
Underlying Models
Capabilities
| Feature | Supported |
|---|---|
| Chat | Yes |
| Agent mode | Yes |
| Multi-file edit | Yes |
| Autocomplete | Yes |
| Terminal | Yes |
| Code review | No |
| Git integration | Yes |
| Deploy integration | No |
| Local models | No |
| Bring your own key | No |
| MCP support | Yes |
| Offline mode | No |
| IP indemnity | No |
| SSO | Yes |
| On-prem | Yes |
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Last reviewed: 2026-06-12. Data sourced from agent documentation and provider pages.