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All model prices

Gemini 4 Argon vs Muse Spark 1.3 API pricing

For a chat message (1K input, 500 output), Muse Spark 1.3 costs $0.00337 per request and Gemini 4 Argon costs $0.007, so Muse Spark 1.3 is about 2.1× cheaper.

On the overall leaderboard Gemini 4 Argon ranks #3 and Muse Spark 1.3 ranks #9.

Prices are the standard pay-as-you-go prices in OpenRouter's public model list, with input at the cache-miss price. Models OpenRouter does not list use the vendor's official price; those listed in CNY are converted to USD at this round's exchange rate.

Work it out for your own usageSee the model leaderboard

Prices and rankings

USD per million tokensGemini 4 ArgonMuse Spark 1.3
Input$2$1.25
Output$10$4.25
Cached input$0.1$0.15
ProviderGoogleMeta
Release date2026-09-302026-09-02
Overall rank#3#9
Coding rank#13—
Reasoning rank—#18
Knowledge rank#1—
Professional work rank#1#28
Verified2026-10-192026-10-19
Price sourcePrice sourcePrice source

Cost per request by usage

Without cache discounts or batch pricing.

UsageGemini 4 ArgonMuse Spark 1.3Difference
Chat message1K in / 500 out$0.007$7 per 1,000$0.00337$3.38 per 1,000Muse Spark 1.3 is 2.1× cheaper
Long document100K in / 2K out$0.22$220 per 1,000$0.13$133.5 per 1,000Muse Spark 1.3 is 1.6× cheaper
Agent session500K in / 50K out$1.5$1,500 per 1,000$0.84$837.5 per 1,000Muse Spark 1.3 is 1.8× cheaper

More price comparisons

Gemini 4 Argon vs other models

Muse Spark 1.3 vs other models