xAI
Grok 4.7
Total Context
500K
Max Output
500K
Released
N/A
grok-4.20Grok-4.20 is presented as a high-speed xAI reasoning model with strong agentic tool calling, strict prompt adherence, low hallucination, and a very large context window in third-party cards. It is meant for long-form analysis, deep research, and multi-step agent workflows. The strongest description should emphasize speed plus long-context reasoning, not just raw conversational personality.
Context Window
1M tokens
Maximum Output
30K tokens
Release Date
Mar 9, 2026
Modalities
| Input Price | Output Price | Cache Read |
|---|---|---|
| $1.25/M | $2.5/M | $0.2/M |
Reasoning
Tool calling
Temperature parameter
Attachments
Knowledge Base
Endpoint Protocols
Grok 4.20 combines reasoning, strict instruction following, image understanding and million-token context for demanding agentic and analytical workloads.
The reasoning variant can think before responding, supporting tasks that require multi-step analysis and careful evaluation.
The model is designed to follow detailed prompts consistently, helping applications enforce task requirements and output constraints.
Text and image inputs can be analyzed within a 1,000,000-token context window, accommodating extensive source material in one task.
Grok 4.20 is suited to complex investigation, long-form technical analysis and multimodal agent workflows requiring precise adherence to instructions.
Work through multi-stage engineering or scientific questions, evaluate competing explanations and produce a reasoned conclusion.
Analyze large document collections against detailed criteria, trace relevant evidence and return a structured assessment.
Interpret text and visual inputs, reason about the requested objective and carry out controlled multi-step tasks with external systems.
import OpenAI from "openai"
const client = new OpenAI({
apiKey: process.env.TOKENHUB_API_KEY,
baseURL: "https://us-api.tokenhub.com/v1",
})
const result = await client.chat.completions.create({})
console.log(result.choices[0]?.message?.content)Grok 4.20 0309 (Reasoning)
| Index score | ||
|---|---|---|
| Artificial Analysis Intelligence Index | Artificial Analysis broad capability aggregate | 36.5 |
| Artificial Analysis Coding Index | Artificial Analysis software task aggregate | 42.2 |
| Knowledge & Reasoning | ||
| GPQA | Advanced science problem solving | 88.5% |
| HLE | Broad expert-level exam set | 30% |
| Coding & Engineering | ||
| SciCode | Scientific coding challenges | 44.7% |
| Terminal-Bench Hard | Hard terminal task execution | 40.9% |
| Instruction Following & Agent Tasks | ||
| IFBench | Prompt constraint adherence | 82.9% |
| AA-LCR | Long-context reasoning | 59% |
| τ²-Bench | Agent workflow tasks | 96.5% |
Metrics sourced from Artificial Analysis
Understand what Grok 4.20 is, its best uses, distinguishing strengths, practical tradeoffs, and safe TokenHub integration guidance.
Grok 4.20 is xAI’s high-performance Grok 4.20 model for reasoning, long context, and agentic tool calling. It is a beta model, so validate latency, output consistency, and supported features before production use.
Best-fit scenarios include reliable execution of multi-step agent workflows, analysis of long documents and datasets, and complex multi-step reasoning. Test representative inputs and define measurable acceptance criteria before production.
Key strengths include effective use of tools and function calls, strict adherence to prompts, and configurable reasoning effort. This combination is especially useful for analysis of long documents and datasets.
Consider another model when the application needs production behavior that is already fully stabilized, the task is simple enough for a non-reasoning variant, or the workflow cannot include human review for important decisions. Verify important factual, legal, financial, medical, or operational outputs with qualified human review.
In TokenHub, select the exact model identifier displayed for Grok 4.20, use the endpoint documented for your account, and authenticate with your TokenHub credentials. Check the TokenHub page for the exact Grok identifier, available reasoning controls, tool access, supported inputs, and current beta or release status.
Use one API key to access Grok 4.20 and more AI models through TokenHub.
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