Windsurf
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.
Compare Windsurf side-by-side with other CLI, IDE, cloud, and framework agents on pricing, model coverage, and release cadence.
Best LLMs for this agent
Primary Cascade model
Pricing and Provider Comparison
Hosted agents expose plan pricing. Bring-your-own-key agents pass the main cost through the model provider route you configure.
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
Compare to Similar Harnesses
FAQ
What is Windsurf?
Windsurf is a proprietary IDE plug-in for AI-assisted coding, built by Codeium (released 2024-11). 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. It is primarily used for pair programming, code review, and repository-aware edits inside an editor.
What models does Windsurf support?
Windsurf runs Claude Sonnet 4.6, Gemini 2.5 Pro, GPT-4.1, DeepSeek R1, GPT-4o (2024-11-20).
How much does Windsurf cost?
Windsurf costs Freemium; Pro at $20/mo.
Is Windsurf open source?
No, Windsurf is a proprietary IDE plug-in.
What are alternatives to Windsurf?
Alternatives include Cursor, Zed, and JetBrains AI Assistant.
When was Windsurf released?
Windsurf was released in 2024-11.