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GPT-5.4 nano (Xhigh)+2 tiers

GPT-5.4 nano (Xhigh) is developed by OpenAI, released 2026-03-17.

Also written as: GPT 5.4 nano (Xhigh)

Reasoning-effort tiers merged. This page shows the highest-intelligence tier. It merges 3 tiers of the same model: GPT-5.4 nano (Xhigh), GPT-5.4 nano (Medium), GPT-5.4 nano (Non-reasoning).
Input price
$0.20 / 1M tok
Output price
$1.25 / 1M tok
Blended price
$0.463 / 1M tok
Intelligence
20.7
75th percentile of 554 models with an Intelligence score
Coding
56.1
73rd percentile of 194 models with a Coding score
Math
—
Speed
—
Time to first token
—

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 OpenAI'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 OpenAI or any other model developer.

1 reseller passed our sanity checks against OpenAI's official price; cheapest trusted price $0.2775/1M blended.

Reseller (marketplace ID)Input $/1MOutput $/1MBlended $/1Mvs. official
xcgx 0.12 0.75 0.2775 60%

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

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

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