xAI: Grok 4.5
Analysis Summary
xAI's Grok 4.5 is a frontier multimodal model with excellent reasoning, coding, and agentic capability. It supports a 500,000-token context window, vision, file input, tool use, and function calling, providing the components needed for complex engineering, document analysis, and multi-step operational workflows.
For Design for Online, it is suitable for autonomous coding assistance, technical SEO systems, long-form research, structured content, and client-facing tasks where depth and tool reliability matter. The context window is smaller than some one-million-token alternatives, but remains ample for many codebases and business documents. Tool-driven processes should still include review controls for consequential actions.
Pricing is premium but competitive with other high-capability models. Lead with Grok 4.5 for difficult reasoning and agentic work, then use cheaper models for routine drafting and high-volume transformations.
Assessed August 9, 2026
Editorial notes
Grok 4.5 combines frontier reasoning and coding with strong agentic capability, a 500K context, vision, file input, and tool calling. It is a powerful choice for engineering and complex automation, with premium pricing limiting bulk use.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
Grok 4.5 combines frontier reasoning and coding with strong agentic capability, a 500K context, vision, file input, and tool calling. It is a powerful choice for engineering and complex automation, with premium pricing limiting bulk use.
Benchmark scores
Magenta = intelligence · Ink = technical/agentic · Cyan = content & long-context · Grey = community benchmarks. Data: Artificial Analysis, Hugging Face.
55.8 Intelligence Index·72.4 Coding Index·48.9 Agentic Index
How xAI: Grok 4.5 compares
XAI: Grok 4.5 ranks #13 of 420 AI models we track for overall intelligence, #13 of 193 for coding, #20 of 175 for agentic tasks. Its 500K-token context window is larger than 79% of the models we list. At $2.00 per million input tokens it is cheaper than 18% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on business fit. The pulled-in value corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $2.00 | $0.002000 |
| Output | $6.00 | $0.006000 |
What would xAI: Grok 4.5 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 688 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save xAI: Grok 4.5 for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout xAI: Grok 4.5
Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
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Frequently asked questions about xAI: Grok 4.5
How much does xAI: Grok 4.5 cost?
xAI: Grok 4.5 costs $2.00 per million input tokens and $6.00 per million output tokens.
What is the context window of xAI: Grok 4.5?
xAI: Grok 4.5 has a context window of 500,000 tokens (500K).
Is xAI: Grok 4.5 good for coding?
On our coding benchmark index, xAI: Grok 4.5 ranks #13 of 193 models, placing it in the top quartile of the field for code generation and debugging.
What can xAI: Grok 4.5 do?
xAI: Grok 4.5 supports image/vision input, tool use, and function calling.
Who created xAI: Grok 4.5?
xAI: Grok 4.5 is developed by xAI and was released on July 8, 2026.
