GPT-5.5, GPT-5.4 mini, Claude Opus 4.6, Claude Sonnet 4.6, Claude Haiku 4.5, Gemini 3.1 Pro, Gemini 3.0 Flash, DeepSeek-V4-Flash, GLM-5. Image models include Nano Banana Pro, FLUX 1.1, Ideogram, DALL·E 3 HD and Doubao Seedream 4.5.
All included in the subscription — no API key required. Sider's pricing page states that “all plans include all features”, which implies tiers differ by credit volume and cloud-computer strength rather than by model access. That claim could not be checked against a rendered plan table. A separate mode drives your own logged-in ChatGPT session instead of spending Sider credits.