xAI: Grok 4
OpenAI • text • vision • function-calling • json-mode
Provider ID
x-ai/grok-4Grok 4 is xAI's latest reasoning model with a 256k context window. It supports parallel tool calling, structured outputs, and both image and text inputs. Note that reasoning is not exposed, reasoning cannot be disabled, and the reasoning effort cannot be specified. Pricing increases once the total tokens in a given request is greater than 128k tokens. See more details on the [xAI docs](https://docs.x.ai/docs/models/grok-4-0709)
Quick Summary
Best For:
High-volume, low-latency tasks where cost efficiency is paramount
Pricing:
$0.00/1M input tokens, $0.00/1M output tokens
Context Window:
256,000 tokens (Large - suitable for extensive codebases)
Key Differentiator:
Cost-optimized for high-volume usage
Specifications
Context Window
256,000 tokens
Streaming
Yes
JSON Mode
Yes
Vision
Yes
Tier
Affordable
Capabilities
text
vision
function-calling
json-mode
Tags
affordable