xAI: Grok 4
Analysis Summary
Grok 4 is xAI's capable reasoning model, released in mid-2025, with an intelligence index of 33.3 and an agentic index of 56.4 that places it among the strongest agentic performers in the broader field. Its math index of 92.7, GPQA of 0.877, and livecodebench of 0.819 reflect genuine frontier-adjacent capability across reasoning, science, and coding tasks. Vision support and a 256K context window add further breadth.
For businesses, Grok 4 suits complex software engineering, autonomous agent workflows, long-document analysis, and tasks requiring high-accuracy scientific or mathematical reasoning. The combination of strong agentic reliability, vision, tool use, and function calling makes it a versatile choice for teams building multi-step pipelines.
At $3.00 input and $15.00 output per million tokens, it is priced at the premium tier. Teams where task complexity justifies the cost will find it a strong performer; those with high-volume, routine workloads should consider a cheaper alternative for the bulk of their traffic.
Assessed July 10, 2026
Editorial notes
Grok 4 from xAI delivers strong reasoning, a leading agentic index of 56.4, vision support, and top-tier math and coding benchmarks, with tool use and function calling across a 256K context window.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
Grok 4 from xAI delivers strong reasoning, a leading agentic index of 56.4, vision support, and top-tier math and coding benchmarks, with tool use and function calling across a 256K context window.
Benchmark scores
Magenta = intelligence Ā· Ink = technical/agentic Ā· Cyan = content & long-context Ā· Grey = community benchmarks. Data: Artificial Analysis, Hugging Face.
33.3 Intelligence IndexĀ·56.4 Agentic IndexĀ·92.7 Math Index
How xAI: Grok 4 compares
XAI: Grok 4 ranks #74 of 395 AI models we track for overall intelligence, #61 of 302 for agentic tasks. Its 256K-token context window is larger than 66% of the models we list. At $3.00 per million input tokens it is cheaper than 11% of comparable models.
Dark bar = input Ā· light bar = output, scaled to the priciest peer.
1M tokens ā 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on content. The pulled-in intelligence corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side āPricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $3.00 | $0.003000 |
| Output | $15.00 | $0.015000 |
What would xAI: Grok 4 cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 620 models ā Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save xAI: Grok 4 for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout xAI: 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..
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Frequently asked questions about xAI: Grok 4
How much does xAI: Grok 4 cost?
xAI: Grok 4 costs $3.00 per million input tokens and $15.00 per million output tokens.
What is the context window of xAI: Grok 4?
xAI: Grok 4 has a context window of 256,000 tokens (256K).
What can xAI: Grok 4 do?
xAI: Grok 4 supports image/vision input, tool use, and function calling.
Who created xAI: Grok 4?
xAI: Grok 4 is developed by xAI and was released on July 9, 2025.
