Model comparisons

InferIndex · https://inferindex.dev/en/compare/nousresearch/hermes-4-405b/vs/x-ai/grok-4.20

Hermes 4 405B costs from $1.50 per million tokens at a 3:1 input:output mix: the cheapest price. Grok 4.20 costs from $1.56, the cheapest of 2 current offers without a flag. Prices checked on 31 October 2026.

Each model's lowest blended price, per 1M tokens, across every provider we track.

Hermes 4 405B vs Grok 4.20: API prices

Model	Blended$/1MLowest blended price, $ per 1M tokens. Green background: the most favourable value of each column.	Input$/1MInput price of the cheapest offer, per 1M tokens	Output$/1MOutput price of the cheapest offer, per 1M tokens	No training$/1MThe provider's published policy says the text you send is not used to train models. We only show what is published; we can't check it ourselves.	Monthly cost$For 2,000 input tokens and 500 output tokens per request, 1,000 requests a day, at the cheapest offer for that workload. Change the workload above.	Offers	Providers	ContextThe maximum amount of text, counted in tokens, the model can take in and write in a single request. Past this limit, the request is refused or cut.	Observation
Hermes 4 405B, Nous Researchat Nebius via Requestyvia Requestyvia Requesty	$1.50, most favourable value of the column	$1.00, most favourable value of the column	$3.00	$0.525at NanoGPT, most favourable value of the column	$36.00, most favourable value of the columnat NanoGPT	7	5	128k	CheapestCheapest. Lowest blended price, $ per 1M tokens
Grok 4.20, xAIat NanoGPT	$1.56Most expensive offer · $1.77. The highest blended price among comparable offers: one price per provider (its cheapest route), standard tier, current prices only. Priority tiers and prices converted from points are not counted.	$1.25	$2.50, most favourable value of the column	$1.56	$112.50at NanoGPT	11	5	2M

Green background: the most favourable value of each column.