Grok 4.7 API Release: Context and Pricing Details
xAI released Grok 4.7 in September 2026. This model features a 500k context window, image inputs, and tiered pricing for coding and agentic tasks.
Release Announcement and Availability
xAI announced the release of Grok 4.7 on September 1, 2026. The source identifies this as a frontier model designed for coding, agentic tasks, and knowledge work. The model is accessible via the xAI API under the identifier grok-4.7. The documentation notes that open weights are not confirmed for this release.
Technical Specifications and Pricing Structure
Grok 4.7 accepts both text and image inputs but produces only text output. The model utilizes a 500k token context window and has no stated limit on text output length. Reasoning effort can be set to low, medium, high (the default), or xhigh. On the Responses API, the model always returns encrypted reasoning content.
- Input modalities: Text and Image
- Output modality: Text only
- Context window: 500k tokens
- Pricing below 200k prompt tokens: $2 per 1M input tokens, $0.50 per 1M cached input tokens, $6 per 1M output tokens
- Pricing above 200k prompt tokens: $4 per 1M input tokens, $1 per 1M cached input tokens, $12 per 1M output tokens
Evaluation Procedure for Engineers
Engineers should validate the model's performance against specific use cases before integration. A practical evaluation procedure involves testing the model with representative coding and agentic task prompts. Measure the latency and cost for requests under and over the 200k token threshold to verify the tiered pricing structure. Compare the output quality when adjusting the reasoning effort from low to xhigh. Validate that image inputs are processed correctly alongside text instructions. These steps confirm operational behavior without assuming unverified architectural benefits.
Primary sources
Frequently asked questions
What is the exact date of the Grok 4.7 announcement?
The source states the event occurred in September 2026, with a specific timestamp of September 1, 2026.
Does Grok 4.7 support local installation?
The source does not confirm open weights or local installation capabilities. It only records that the model is available on the xAI API.