Model prompt credits are not applicable in Cognition Platform plans. For Cognition Platform customers, please refer to the ACU consumption shown in your Cognition Platform settings.
For the most up-to-date pricing and availability, please refer to the model selector in Cascade within the Windsurf IDE.
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| Model | Credits | Free | Pro | Teams | Enterprise | Trial |
|---|---|---|---|---|---|---|
  SWE-1.5 | 0   |   | | | | |
 Claude Opus 4.6 | 6 | | | | | |
| Claude Sonnet 4.6 | 4 | | | | | |
| Claude Opus 4.5 | 4 | | | 6 | | |
| Claude Sonnet 4.5 | 2 | | | 3 | | |
  GPT-5.2-Codex (Low Reasoning Fast) | 2 | | | | | |
| GPT-5.3-Codex (Medium Reasoning) | 2 | | | | |
SWE-1.5, swe-grep, SWE-1
Our SWE model family of in-house frontier models are built specifically for software engineering tasks. Our latest frontier model, SWE-1.5, achieves near-SOTA performance in a fraction of the time. Our in house models include:SWE-1.5: Our best agentic coding model we’ve released. Near Claude 4.5-level performance, at 13x the speed. Read our research announcement.SWE-1: Our first agentic coding model. Achieved Claude 3.5-level performance at a fraction of the cost.SWE-1-mini: Powers passive suggestions in Windsurf Tab, optimized for real-time latency.swe-grep: Powers context retrieval and Fast Context
Bring your own key (BYOK)
For certain models, we allow users to bring their own API keys. In the model dropdown menu, individual users will see models labled withBYOK.
To input your API key, navigate to this page in the subscription settings and add your key.
If you have not configured your API key, it will return an error if you try to use the BYOK model.
Currently, we only support BYOK for these models:
Claude 4 SonnetClaude 4 Sonnet (Thinking)Claude 4 OpusClaude 4 Opus (Thinking)