xAI

Grok 4.20 (Reasoning)

grok-4.20-0309-reasoning

A reasoning model for document-heavy analysis and long-horizon tool use

Reasoning Grok for document-heavy analysis and long-horizon tool use

1M context1M context
Released2026-03-09
Relays12 sites
reasoningtool use

Model information

Model ID
grok-4.20-0309-reasoning
Context
1M
Max input
-
Max output
30K
Knowledge cutoff
-
Open weights
Not supported
License
-
Release date
2026-03-09

Input

Text: SupportedImage: SupportedAudio: Not supportedVideo: Not supportedPDF: SupportedFile: Supported

Output

Text: SupportedImage: Not supportedAudio: Not supportedVideo: Not supported

API capabilities

Reasoning: SupportedTool call: SupportedStructured output: UnknownTemperature: Supported

xAI Official Pricing

CNY
Updated: 2026-10-04T22:55:11.747+08:00

Input

~¥8.358/ 1M tokens

Output

~¥16.715/ 1M tokens

Cache read

~¥1.337/ 1M tokens

Relay Comparison

Compare token, per-request, or per-second pricing by relay channel.

How should Grok 4.20 (Reasoning) relay pricing be compared?

This Grok 4.20 (Reasoning) pricing page compares official pricing with public prices from 12 listed AI gateways. Token prices are shown in CNY per 1M tokens, while per-request, per-second, and per-character rows use the unit shown in the table. Last updated: 11/08/2026, 08:14.

Data sources
Public price catalogs, official pricing records, and monitoring results.
Metric definitions
Uptime means successful probe response rate, fake-rate signals possible model mismatch or abnormal output risk, and latency is average API response time.
Risk note
Relay gateways are third-party services. Pricing, billing, privacy, and stability can change; start with a small top-up and verify reliability before continued use.