X Ai
Grok 4
Grok 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)
- Input / 1M tokens
- $3.00
- Output / 1M tokens
- $15.00
- Context window
- 256K tokens
- Provider
- X Ai
- Cached input / 1M
- $0.750
- Knowledge cutoff
- 2025-07-31
Performance
Median streaming throughput and first-token latency measured by Artificial Analysis.
- Output tokens / sec
- 63 t/s
- Time to first token
- 7.14s
Benchmarks
Intelligence, coding, and math indexes plus the underlying evaluation scores.
- Intelligence Index
- 42
- Coding Index
- 41
- Math Index
- 93
- MMLU-Pro
- 86.6%
- GPQA
- 87.7%
- HLE
- 23.9%
- LiveCodeBench
- 81.9%
- SciCode
- 45.7%
- MATH-500
- 99.0%
- AIME
- 94.3%
Benchmarks via Artificial Analysis