Grok 4.20 0309 (Reasoning)+1 tiers

Name: Grok 4.20 0309 (Reasoning)
Brand: SpaceXAI

Grok 4.20 0309 (Reasoning) is developed by SpaceXAI, released 2026-03-10.

Reasoning-effort tiers merged. This page shows the highest-intelligence tier. It merges 2 tiers of the same model: Grok 4.20 0309 (Reasoning), Grok 4.20 0309 (Non-reasoning).

Input price

$2.00 / 1M tok

Output price

$6.00 / 1M tok

Blended price

$3.00 / 1M tok

Intelligence

25.2

83rd percentile of 554 models with an Intelligence score

Coding

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Math

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Speed

—

Time to first token

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Third-party resale listings

Captured 2026-10-20 from the reseller marketplace subrouter.ai's public pricing list. These are third-party resale prices, not SpaceXAI's official price. Many resellers use shared/subscription access or reverse-engineered integrations — availability and quality are not verified by this site. Prices are USD per 1M tokens. Reseller names are the marketplace's own listing IDs, not company names — none of them is SpaceXAI or any other model developer.

1 reseller passed our sanity checks against SpaceXAI's official price; cheapest trusted price $0.9375/1M blended.

Reseller (marketplace ID)	Input $/1M	Output $/1M	Blended $/1M	vs. official
xcgx	0.75	1.50	0.9375	31%

Resale listings: subrouter.ai public marketplace snapshot 2026-10-20.

Official pricing from SpaceXAI. See the third-party resale listings above for reseller prices — those are not official and not verified by this site.

See all of SpaceXAI's models on its provider page, or browse the full model directory.