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.

Modalities
Image, TextText
In / Out price
$1.25/$2.5per 1M
Context window
2M tokens
Released
Apr 9, 2026

Grok 4.20 Non-Reasoning overview

The pelican test: one prompt, every text model, unedited SVG output from Nov 3, 2026.

SVG of a pelican riding a bicycle, written by Grok 4.20 Non-Reasoning through AI/ML API

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.

Grok 4.20 Non-Reasoning API pricing

Grok 4.20 Non-Reasoning pricing in US dollars
UsagePriceUnit
Input$1.251M tokens
Output$2.51M tokens
Cached input$0.21M 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.

AI/ML API model prices in USD per million tokens
ModelInputOutput
Grok 4.20 Non-Reasoning$1.25$2.5
Grok Build 0.1$1$2
Grok 4.7$2$6
Grok 4.6$2$6
Grok 4.5$2$6

How to use the Grok 4.20 Non-Reasoning API

View docs

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export 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."
    }
  ]
}'

Related articles

All posts

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.

Start building with Grok 4.20 Non-Reasoning

Grok 4.20 Non-Reasoning API

x-ai/grok-4-20-0309-non-reasoning

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export 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."
    }
  ]
}'