Grok 4.5 is now available on the xAI API with configurable reasoning effort and token pricing.

Builders can choose low, medium, or high reasoning effort instead of treating the model as one fixed setting.

It sits as xAI's API model for coding, agentic tasks, and knowledge work, with published input and output prices.

• Aug 05, 2026OpenAI removed model selection copy naming GPT-5.6 Sol, Terra, and Luna.
• Aug 05, 2026Anthropic removed model card copy for Claude Fable 5 and Claude Mythos 5.
• Aug 05, 2026Google pricing page removed Gemini model navigation and Interactions API availability note

This is the world we build in. It moves this fast. We move with it.