When was Grok-4.20 Beta Reasoning released?

Grok-4.20 Beta Reasoning was released on March 9, 2026 by xAI. This is the official Grok-4.20 Beta Reasoning release date tracked on LLM Stats.

Is Grok-4.20 Beta Reasoning available via API?

Yes, Grok-4.20 Beta Reasoning is available via API. See the official documentation for authentication and endpoint details. It is served by 1 provider tracked on LLM Stats.

Who created Grok-4.20 Beta Reasoning?

Grok-4.20 Beta Reasoning was created by xAI.

What is the license for Grok-4.20 Beta Reasoning?

Grok-4.20 Beta Reasoning is released under the Proprietary license.

Is Grok-4.20 Beta Reasoning multimodal?

Yes, Grok-4.20 Beta Reasoning is multimodal and can accept both text and images as input.

Where can I use Grok-4.20 Beta Reasoning?

Grok-4.20 Beta Reasoning is available through 1 provider including xAI.

What models should I compare Grok-4.20 Beta Reasoning against?

Common Grok-4.20 Beta Reasoning comparisons include Grok-4.20 Beta Reasoning vs Claude Haiku 4.5, Grok-4.20 Beta Reasoning vs Gemini 3.1 Flash-Lite, Grok-4.20 Beta Reasoning vs MiniMax M2.7. Compare them side by side for benchmark scores, pricing, context window, latency and API availability.

Grok-4.20 Beta Reasoning API Pricing, Context Window & Benchmarks

Name: Grok-4.20 Beta Reasoning
Author: xAI

Grok-4.20 Beta Reasoning: API Pricing, Context Window & Benchmarks

Grok-4.20 Beta Reasoning is a language model from xAI, released in March 2026, with multimodal input.

Grok 4.20 Beta Reasoning is xAI's reasoning-optimized variant of the Grok 4.20 model family. Released as a beta on March 9, 2026, it uses thinking tokens for enhanced chain-of-thought reasoning, featuring a 2 million token context window

Input

TextImage

Output

Text

Grok-4.20 Beta Reasoning benchmarks

Rankings

Quality Tracker

Grok-4.20 Beta Reasoning Performance Across Datasets

Scores sourced from the model's scorecard, paper, or official blog posts

llm-stats.com - Mon Jul 27 2026

Notice missing or incorrect data?

Grok-4.20 Beta Reasoning pricing

Providers

Grok-4.20 Beta Reasoning starts at $2.00 per million input tokens and $6.00 per million output tokens via xAI.

Provider	Input $/M	Output $/M	Context in / out	TTFT p50 / p95 s	Output avg / p5 c/s	Success 7d	Modalities in / out
xAI	$2.00	$6.00	2.0M/30.0K	—/—	—/—	—	/

Cached input is the discounted price for prompt tokens served from a provider cache. TTFT is time to first token. Output is characters per second; p5 is the sustained floor exceeded by 95% of observed requests. Success is calculated from completed versus failed requests over the trailing seven days.

Grok-4.20 Beta Reasoning context window

Input and output token limits for Grok-4.20 Beta Reasoning, plus how it ranks on long-context understanding.

InputOutput

2Mtokens

30Ktokens

≈ 3.0k pages of text

8K128K1M

Grok-4.20 Beta Reasoning API

Available from the model provider

Grok-4.20 Beta Reasoning has an official provider API. It is not currently routed through the LLM Stats gateway.

Read the official API documentation

Grok-4.20 Beta Reasoning latency

Grok-4.20 Beta Reasoning time to first token, sustained output throughput, and failed-request rate from live API traffic over the trailing 7 days.

Grok-4.20 Beta Reasoning examples

Recent arena outputs from Grok-4.20 Beta Reasoning, picked from the highest-ranked matchups.

Grok-4.20 Beta Reasoning license

Grok-4.20 Beta Reasoning is a proprietary model available under its provider's product and API terms.

License: Proprietary; Hosted access

Proprietary license - usage restrictions apply

Grok-4.20 Beta Reasoning resources

Official sources for Grok-4.20 Beta Reasoning: api documentation, official playground.

Grok-4.20 Beta Reasoning vs other models

The most-compared alternatives to Grok-4.20 Beta Reasoning are Claude Haiku 4.5, Gemini 3.1 Flash-Lite, MiniMax M2.7. Open any pair side-by-side for benchmarks, pricing, context, and latency.