InferIndex · https://inferindex.dev/en/compare/bytedance/ui-tars-1.5-7b/vs/meta/muse-spark-1.3-contributor
UI-TARS 7B costs from $0.125 per million tokens and Muse Spark 1.3 Contributor from $0.125 (at a 3:1 input:output mix): the cheapest price for each; prices checked on and .
Verdict
At these prices, the two models cost about the same 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 · $0.125. 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 | $0.20 | at Parasail | $9.00at Featherless | 5 | 4 | 33k | ||
| Most expensive offer · $0.125. 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 | $0.20 | $0.125 | $9.00at NanoGPT | 10 | 9, most favourable value of the column | 1M |
Green background: the most favourable value of each column.
Prices as of Oct 31, 2026, 12:57 AM UTCSame rules as the API's /cheapest route. The monthly estimate uses the cheapest offer for that workload.