InferIndex · https://inferindex.dev/en/compare/deepseek/deepseek-v4.1-flash/vs/openai/gpt-6-luna
DeepSeek V4.1 Flash costs from $0.223 per million tokens at a 3:1 input:output mix: the cheapest of 29 current offers without a flag. A lower price, $0.20, is listed with a flag. GPT-6 Luna costs from $0.20, the cheapest price. Prices checked on .
Verdict
At these prices, DeepSeek V4.1 Flash costs 1.1× as much as GPT-6 Luna per million tokens (at a 3:1 input:output mix).
Each model's lowest blended price, per 1M tokens, across every provider we track.
| Model | Lowest blended price, $ per 1M tokens. Green background: the most favourable value of each column. | Input price of the cheapest offer, per 1M tokens | Output price of the cheapest offer, per 1M tokens | The 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. | 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 | The 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 |
|---|---|---|---|---|---|---|---|---|---|
| Most expensive offer · $0.85. 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. | $0.112 | $0.464, most favourable value of the column | at DeepInfra | $13.68at Runinfra via Vercel AI Gateway | 119 | 75, most favourable value of the column | 1M | ||
| Most expensive offer · $0.24. 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. | $0.10, most favourable value of the column | $0.50 | $0.20, most favourable value of the column | $13.50, most favourable value of the columnat OpenAI | 48 | 21 | 1.1M |
Green background: the most favourable value of each column.
Prices as of Nov 2, 2026, 5:06 PM UTCSame rules as the API's /cheapest route. The monthly estimate uses the cheapest offer for that workload.
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