How much does Grok 4.20 (non-reasoning) cost per million tokens?

$1.25 per 1M input tokens and $2.50 per 1M output tokens for prompts under 200,000 tokens, read on xAI's official pricing page on September 28, 2026.

What does a cached input token cost on Grok 4.20 (non-reasoning)?

$0.20 per 1M cached input tokens, 16% of the $1.25 input price.

Does Grok 4.20 (non-reasoning) cost more for long prompts?

Yes. For prompts of 200,000 tokens or more it costs $2.50 per 1M input tokens and $5.00 per 1M output tokens, $0.40 for cached input, against $1.25 and $2.50 below that.

Pricing · xAI

Grok 4.20 (non-reasoning)

xAI's grok-4.20-0309-non-reasoning, 1M tokens of context. Every number on this page was read off xAI's own pricing page — never estimated, never recalled from memory.

Same price as Grok 4.20 (reasoning). Grok 4.20 (non-reasoning) and Grok 4.20 (reasoning) have the same input, output and cached-input prices, the same long-prompt tier and the same context window in this dataset, and the plain model name grok-4.20 is an alias of Grok 4.20 (reasoning) on xAI's model page (read October 1, 2026). This page stays online but is kept out of search results. Grok 4.20 (reasoning) pricing →

How xAI describes it

“Grok 4.20 is a high-performance model with industry-leading speed and agentic tool calling capabilities.”

xAI, model page, read September 30, 2026

Pricing

Input	$1.25	per 1M tokens
Output	$2.50	per 1M tokens
Cached input	$0.20	per 1M tokens · 0.16× the input price

Long-prompt tiers

Pricing changes above a prompt-size threshold. If your average request is near the boundary, the effective rate is not the headline rate.

Condition	Input	Output	Cached input
prompt ≥ 200000 tokens	$2.50	$5.00	$0.40

At the calculator's starting volume, 1M input tokens and 200K output tokens with no cache hits, Grok 4.20 (non-reasoning) costs $1.75: $1.25 for input and $0.50 for output, at the prices above. Same formula as the calculator; change the volume there.

Where this price sits

$1.25 per 1M input tokens (for prompts under 200K tokens) is the 26th cheapest input price of the 67 current models with a verified price on this site, and the 2nd of xAI's 8. Output costs 2.0× the input price.

Other current models in the Grok family:

Grok Build 0.1 256K tokens $1.00 in · $2.00 out
Grok 4.3 1M tokens $1.25 in · $2.50 out
Grok 4.20 (reasoning) 1M tokens $1.25 in · $2.50 out
Grok 4.20 Multi-agent 1M tokens $1.25 in · $2.50 out
Grok 4.6 500K tokens $2.00 in · $6.00 out
Grok 4.7 500K tokens $2.00 in · $6.00 out
Grok 4.5 500K tokens $2.00 in · $6.00 out

Other price lists xAI publishes for Grok 4.20 (non-reasoning)

The prices above are xAI's Standard list, the one the table and the calculator use. xAI also sells Grok 4.20 (non-reasoning) on one other list, each with a condition. Figures and wording are quoted from xAI's own pages as read on the date shown; this site computes none of them.

Batch · 20 % off all token types · wait: completion is best effort, most within 24 hours

No figure shown: the per-model batch prices sit behind a toggle on each model's page that this site could not read without a browser, so no figure is shown.

The Batch API lets you process large volumes of requests asynchronously at a discount to standard pricing. The size of the discount varies by model. The batch discount applies to all token types — input tokens, output tokens, cached tokens, and reasoning tokens.

Source, read September 16, 2026

Specifications

API model id	`grok-4.20-0309-non-reasoning`
Provider	xAI
Family	Grok
Context window	1M tokens
Released	March 10, 2026
Status	Current

Grok 4.20 (non-reasoning) was released on March 10, 2026.

Questions about Grok 4.20 (non-reasoning) pricing

How much does Grok 4.20 (non-reasoning) cost per million tokens?: $1.25 per 1M input tokens and $2.50 per 1M output tokens for prompts under 200,000 tokens, read on xAI's official pricing page on September 28, 2026.
What does a cached input token cost on Grok 4.20 (non-reasoning)?: $0.20 per 1M cached input tokens, 16% of the $1.25 input price.
Does Grok 4.20 (non-reasoning) cost more for long prompts?: Yes. For prompts of 200,000 tokens or more it costs $2.50 per 1M input tokens and $5.00 per 1M output tokens, $0.40 for cached input, against $1.25 and $2.50 below that.

Verified September 28, 2026 against xAI's official pricing page. Confidence: confirmed. No price change recorded for this model. How the data is checked.

Other xAI models with a verified price

Grok Build 0.1 Grok $1.00 in · $2.00 out
Grok 4.3 Grok $1.25 in · $2.50 out
Grok 4.20 (reasoning) Grok $1.25 in · $2.50 out
Grok 4.20 Multi-agent Grok $1.25 in · $2.50 out
Grok 4.6 Grok $2.00 in · $6.00 out
Grok 4.7 Grok $2.00 in · $6.00 out
Grok 4.5 Grok $2.00 in · $6.00 out

Cheaper or equally priced alternatives

Current models with an input price at or below $1.25 per 1M tokens.

Gemini 2.5 Pro Google $1.25 in · $10.00 out
Grok 4.3 xAI $1.25 in · $2.50 out
Grok 4.20 (reasoning) xAI $1.25 in · $2.50 out
Grok 4.20 Multi-agent xAI $1.25 in · $2.50 out

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