Grok 4.6
Summary
Grok 4.6 is a proprietary language model from xAI, released on 12 Aug 2026. It accepts text, images and PDFs and generates text, with a 500K-token context window and up to 500K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $2 per million input tokens and $6 per million output tokens (xAI API), across 6 providers we track.
xAI's frontier model for long-running agents, coding, knowledge work, and visual projects
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | xAI |
|---|---|
| Release date | 12 Aug 2026 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Proprietary (API only) [models.dev] |
| Context window | 500K (500,000 tokens) [models.dev] |
| Max output | 500K tokens [models.dev] |
| Knowledge cutoff | 1 Feb 2026 [models.dev] |
| Input | Text, images and PDFs [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | Yes [models.dev] |
| Tool calling | Yes [models.dev] |
| Structured output | Yes [models.dev] |
Grok 4.6 API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| xAI API grok-4.6 | $2 | $6 | $0.50 | 500K | models.dev, 4 Oct 2026 |
| Amazon Bedrock global.xai.grok-4.6 | $2 | $6 | $0.50 | 500K | models.dev, 4 Oct 2026 |
| Google Vertex AI xai/grok-4.6 | $2 | $6 | $0.50 | 524K | models.dev, 4 Oct 2026 |
| Vercel AI Gateway spacexai/grok-4.6 | $2 | $6 | $0.50 | 500K | models.dev, 4 Oct 2026 |
| OpenRouter x-ai/grok-4.6 | $2 | $6 | $0.50 | 500K | OpenRouter, 4 Oct 2026 |
| Amazon Bedrock xai.grok-4.6 | $2.20 | $6.60 | $0.55 | 500K | models.dev, 4 Oct 2026 |
| Amazon Bedrock us.xai.grok-4.6 | $2.20 | $6.60 | $0.55 | 500K | models.dev, 4 Oct 2026 |
| Azure AI Foundry grok-4.6 | – | – | – | 200K | models.dev, 4 Oct 2026 |
Frequently asked questions
What is the context window of Grok 4.6?
Grok 4.6 has a context window of 500,000 tokens (500K) and can generate up to 500,000 tokens in a single response, according to models.dev.
How much does the Grok 4.6 API cost?
Through xAI API, Grok 4.6 costs $2 per million input tokens and $6 per million output tokens. Prices last verified 4 Oct 2026.
Is Grok 4.6 open source?
No. Grok 4.6 is a proprietary model; xAI has not released its weights. It is available through APIs including xAI API, Amazon Bedrock, Google Vertex AI, Vercel AI Gateway.
When was Grok 4.6 released?
xAI released Grok 4.6 on 12 Aug 2026, according to models.dev.
Which providers offer Grok 4.6?
We track Grok 4.6 on 6 providers: xAI API, Amazon Bedrock, Google Vertex AI, Vercel AI Gateway, OpenRouter, Azure AI Foundry.
Change history
No changes detected since we started tracking this model. We re-check every source daily.
Sources
- https://github.com/sst/models.dev/blob/dev/providers/xai/models/grok-4.6.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/global.xai.grok-4.6.toml
- https://github.com/sst/models.dev/blob/dev/providers/google-vertex/models/xai/grok-4.6.toml
- https://github.com/sst/models.dev/blob/dev/providers/vercel/models/spacexai/grok-4.6.toml
- https://openrouter.ai/x-ai/grok-4.6
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/xai.grok-4.6.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/us.xai.grok-4.6.toml
- https://github.com/sst/models.dev/blob/dev/providers/azure/models/grok-4.6.toml