Grok 4.20 Non-Reasoning overview
Grok 4.20 Non-Reasoning specs
- Model ID
x-ai/grok-4-20-0309-non-reasoning- Developer
- xAI
- Context window
- 2,000,000 tokens
- Max output
- 1,999,000 tokens
- Input
- Image, Text
- Output
- Text
- API
- OpenAI-compatible, base URL
https://api.aimlapi.com/v1
What is Grok 4.20 Non-Reasoning API?
Grok 4.20 Non-Reasoning, a general-purpose language model optimized for standard text generation and conversational tasks, without extended reasoning capabilities.
Where to Use Grok 4.20 Non-Reasoning
Coding and code review
Generate, debug, and review code across languages, reading whole files or repos in a single prompt.
Use cases
Routine Q&A, general information retrieval, and high-throughput scenarios where response speed is the priority.
Fast, single-pass responses without an explicit reasoning trace, making it suitable for direct text generation tasks.
High-volume conversational workflows, including multi-turn chat with large shared context.
Long-document analysis and summarization.
Capabilities
- Function calling
- Streaming
- Structured outputs
- Web search
Grok 4.20 Non-Reasoning benchmarks by
Artificial Analysis
See how Grok 4.20 Non-Reasoning scores on independent evaluations. Data retrieved Nov 3, 2026.
Benchmark results
Compare 10 models available on AI/ML API across 5 independent benchmarks.
Humanity's Last Exam
Expert-written questions across academic subjects.
GPQA Diamond
Graduate-level science questions written to resist web search.
AA-LCR
Reasoning across long documents of about 100k tokens.
IFBench
Following precise instructions about the shape of the answer.
τ²-Bench Telecom
Customer support agent tasks with tool calls.
Grok 4.20 Non-Reasoning API pricing
| Usage | Price | Unit |
|---|---|---|
| Input | $1.25 | 1M tokens |
| Output | $2.5 | 1M tokens |
| Cached input | $0.2 | 1M tokens |
Prices from the AI/ML API price list, checked on Nov 4, 2026.
Grok 4.20 Non-Reasoning vs other models: token prices
AI/ML API input and output rates for 5 models, per million tokens.
| Model | Input | Output |
|---|---|---|
| $1.25 | $2.5 | |
| $1 | $2 | |
| $2 | $6 | |
| $2 | $6 | |
| $2 | $6 |
How to use the Grok 4.20 Non-Reasoning API
View docsBuild with your agent
Give your agent the model details, code and documentation.
1Get your API key
Create API keyexport AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"2Make your first request
curl 'https://api.aimlapi.com/v1/chat/completions' \
-H "Authorization: Bearer $AIMLAPI_KEY" \
-H 'Content-Type: application/json' \
-d '{
"model": "x-ai/grok-4-20-0309-non-reasoning",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}'import os
import requests
headers = {
"Authorization": f"Bearer {os.environ['AIMLAPI_KEY']}",
"Content-Type": "application/json",
}
payload = {
"model": "x-ai/grok-4-20-0309-non-reasoning",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}
response = requests.post("https://api.aimlapi.com/v1/chat/completions", headers=headers, json=payload, timeout=120)
response.raise_for_status()
print(response.json())const response = await fetch("https://api.aimlapi.com/v1/chat/completions", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"model": "x-ai/grok-4-20-0309-non-reasoning",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}),
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
console.log(await response.json());Related articles
Grok 4.20 Non-Reasoning FAQ
What is the context window of Grok 4.20 Non-Reasoning?
Grok 4.20 Non-Reasoning has a 2,000,000 tokens context window and can return up to 1,999,000 tokens.
What inputs and outputs does Grok 4.20 Non-Reasoning support?
Grok 4.20 Non-Reasoning takes image, text as input and returns text.
What is the model ID for Grok 4.20 Non-Reasoning?
Use x-ai/grok-4-20-0309-non-reasoning as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.
How much does Grok 4.20 Non-Reasoning cost?
Grok 4.20 Non-Reasoning costs $1.25 input and $2.5 output per 1M tokens on AI/ML API, billed as you go with no subscription.
Does Grok 4.20 Non-Reasoning support streaming?
Yes, Grok 4.20 Non-Reasoning can stream responses as they are generated.
Can Grok 4.20 Non-Reasoning read images?
Yes, Grok 4.20 Non-Reasoning accepts image input alongside text.
Who created Grok 4.20 Non-Reasoning?
Grok 4.20 Non-Reasoning was built by xAI .
Does Grok 4.20 Non-Reasoning produce chain-of-thought style reasoning output?
No, it is a non-reasoning model designed for standard text generation without extended reasoning traces.
What features does Grok 4.20 Non-Reasoning support beyond basic chat?
It supports function calling, structured outputs, web search, tools, and parallel tool calls.

