Note: Supermaven was acquired by Anysphere (the team behind Cursor) in November 2024, but continues to operate as an independent product.

Supermaven: A Windsurf Alternative for Ultra-Fast Code Completion

Supermaven is an AI code completion tool developed by Supermaven Inc. It differentiates itself with 250ms response latency and a 1 million token context window, making it the fastest code completion option in its category. As a Windsurf alternative, it is best suited for developers who prioritize speed and large codebase awareness over an integrated IDE experience.

Supermaven vs. Windsurf: Quick Comparison

Key Strengths

• Exceptional speed: Supermaven claims 250ms response times, compared to ~783ms for leading competitors. This is achieved through a proprietary completion model optimized for latency, not just accuracy.
• 1 million token context window (Pro): The Pro plan includes a 1 million token context window, one of the largest in the IDE extension category. This allows Supermaven to reference definitions, types, and patterns from large monorepos without truncation.
• Multi-IDE support: Supermaven works with VS Code, all major JetBrains IDEs, and Neovim. This is broader than some competitors that focus exclusively on VS Code.
• Integrated chat with model choice: Supermaven Chat lets you switch between GPT-4o, Claude 3.5 Sonnet, and GPT-4. The chat surface can automatically attach recently edited files and apply AI-suggested diffs directly to the editor.

Known Limitations

• No standalone IDE: Supermaven is an extension, not a full IDE. Developers who want an AI-native editor experience with agentic task orchestration will need to look elsewhere.
• No self-hosted option: Supermaven runs on cloud infrastructure. There is no documented self-hosted or on-prem deployment path, which may block use in high-security environments.
• 7-day data retention on free tier: The free plan limits data retention to 7 days. Teams with compliance requirements should review the code policy before adopting the free tier.
• No native agentic features: Supermaven does not offer autonomous multi-step task execution or file creation. It is focused on completion and chat, not agentic workflows.

Best For

Supermaven is best for individual developers and small teams who already have a preferred IDE (VS Code or JetBrains) and want fast, context-aware code completion without switching tools. It suits developers working on large codebases where context window size directly affects completion quality.

Teams that use multiple IDEs across the stack benefit from Supermaven's cross-IDE support. Engineers who frequently switch between IntelliJ IDEA for backend work and VS Code for frontend will find Supermaven consistent across both environments. The free tier removes the evaluation barrier, making it practical to test before committing to a paid plan.

Supermaven is also a good fit for developers who want to add AI assistance incrementally — starting with fast completions and later enabling chat with model switching — without a full IDE migration or workflow disruption.

Pricing

• Free Tier: $0/month — fast code suggestions, works with large codebases, 7-day data retention limit
• Pro: $10/month — adds 1 million token context window, adapts to coding style, largest model, $5/month chat credits, 30-day free trial
• Team: $10/user/month — all Pro features plus centralized user management and billing, unlimited users

Prices are subject to change. Check the official pricing page for current details.

Tech Details

• Type: IDE Extension (code completion + chat)
• IDEs: VS Code, JetBrains IDEs, Neovim
• Key features: ultra-fast code completion, 1M token context window (Pro), multi-model chat, style adaptation (Pro), codebase-aware suggestions
• Privacy / hosting: Cloud; 7-day data retention (configurable per plan); see code-policy page for details
• Models / context window: Proprietary model for completion; GPT-4o, Claude 3.5 Sonnet, GPT-4 for chat; 1 million token context window (Pro)

When to Choose This Over Windsurf

• You want to keep your existing IDE (VS Code, JetBrains) without switching to a new editor environment
• Response latency is critical — Supermaven's 250ms completion is documented and benchmark-tested
• You work on large codebases where a 1 million token context window directly improves suggestion quality
• You need multi-IDE support across VS Code and JetBrains in the same team
• You want a free tier with genuinely useful completions before committing to a paid plan

When Windsurf May Be a Better Fit

• You want a fully integrated AI IDE with agentic task management and multi-file editing in a single interface
• You prefer a standalone editor built around AI workflows rather than an extension layered on top
• You need autonomous multi-step code generation, not just fast completions and chat

Conclusion

Supermaven is the right Windsurf alternative for developers who value speed and context window size but do not want to abandon their current IDE. Its free tier with no credit card requirement makes it easy to evaluate. Teams running mixed IDE environments (VS Code + JetBrains) will find Supermaven's cross-IDE support particularly practical.

Sources

• Official Site
• Official Pricing
• Code Policy

FAQ