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Muse Spark 1.2 API Pricing & Cost Calculator

Muse Spark 1.2 keeps 1.1's $1.25/$4.25 pricing while improving quality. It undercuts GLM-5.3 slightly on both rows and beats Gemini 3.6 Flash on output, with an 88% cache discount for stable-prompt loops.

Muse Spark 1.2 is Meta's incremental refresh of its hosted frontier API - same $1.25/$4.25 rate card as 1.1, with quality improvements that keep it in the mid-tier workhorse band next to GLM-5.3.

By TechCompare · Updated

Input tokens
100,000
per request
Output tokens
5,000
per request
Volume
100 / monthly
Standard API

Calculator

Cost Comparison

Based on 100,000 input tokens (50% cached), 5,000 output tokens, and 100 requests.Prices are fetched live from OpenRouter and may include temporary promotional discounts not accounted for in our article and comparison figures.

Same 100,000 in / 5,000 out (50% cached) scenario, pre-loaded. Adjust tokens, caching, or swap models.
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How this is calculated

Muse Spark 1.2 is priced at $1.25 per million input tokens and $4.25 per million output tokens, with an 88% prompt caching discount ($0.15 per million cached reads) and no published batch discount. The context window is 1M. OpenRouter's listing matches Meta's own serving rates.

Verdict

At $1.25/M input and $4.25/M output a 100K + 5K call is $0.146, slightly under GLM-5.3's $0.162 and well under Gemini 3.6 Flash's $0.188 at standard rates. The 88% cache discount takes cached input to $0.15/M. The differentiator over GLM-5.3 and Gemini Flash is the Meta ecosystem: Llama Stack compatibility and the Muse Glimmer open sibling for hybrid deploys. Pure price-shoppers should still compare against DeepSeek V4 Flash, which runs $0.05 for the same call.

More API Standalones scenarios

MiMo-V2.6-Pro Pricing
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MiMo-V2.6-Flash Pricing
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GLM-5.3-Flash Pricing
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Related guides

muse glimmer 30b VRAM estimate
VRAM footprint for Meta's open Muse Glimmer sibling.
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Token cost calculator
How per-token counts turn into API costs.
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Frequently asked questions

How does Muse Spark 1.2 differ from 1.1?
Quality updates at identical pricing. Both are $1.25/M input and $4.25/M output with the 88% cache discount ($0.15/M cached reads). Upgrading from 1.1 to 1.2 is free. There's still no published batch discount.
Muse Spark 1.2 or GLM-5.3?
Nearly the same price card: Muse is $1.25/$4.25, GLM is $1.40/$4.40, and Muse's cache discount is deeper (88% vs 81%). GLM has the longer production track record at 1M context and Muse has the Meta ecosystem. If you're already on Llama Stack, Muse is the natural pick.

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