Windsurf, a startup focused on AI software engineering models (SWEs), has announced the launch of its first family of models, named SWE-1. The company claims that these models are designed to optimize the entire software engineering process, extending beyond just coding.
Performance Comparison
In a recent blog post, Windsurf shared that it tested SWE-1 against other popular AI tools, finding competitive performance on internal programming benchmarks. The models compared include:
- Claude 3.5 Sonnet
- GPT-4.1
- Gemini 2.5 Pro
However, Windsurf acknowledged that SWE-1 did not perform as well as more advanced frontier AI models, such as Claude 3.7 Sonnet, on certain tasks.
Availability and Pricing
Windsurf is offering its new model in various forms:
- SWE-1-lite and SWE-1-mini: Available for free or for a fee through the Windsurf platform.
- Full version of SWE-1: Accessible only to paying users.
While pricing details have not yet been disclosed, Windsurf claims that running their new model incurs lower serving costs compared to using Claude 3.5 Sonnet.
Industry Context
Windsurf is among several startups striving to develop more powerful and efficient AI software engineering models. These companies aim to simplify the process for developers, particularly those without extensive knowledge in machine learning or data science, by enabling them to build complex applications using AI-generated code rather than writing it from scratch.
This development comes at a time of increasing investor interest in the potential applications of frontier AIs, such as those created by Google DeepMind.

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