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All model prices

Gemini 4 Argon vs Kimi K3.1 Pro API pricing

For a chat message (1K input, 500 output), both cost $0.007 per request.

On the overall leaderboard Gemini 4 Argon ranks #4 and Kimi K3.1 Pro ranks #2.

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 ArgonKimi K3.1 Pro
Input$2$2
Output$10$10
Cached input$0.1$0.2
ProviderGoogleKimi
Release date2026-09-302026-10-23
Overall rank#4#2
Coding rank#13—
Reasoning rank——
Knowledge rank#1—
Professional work rank#1—
Verified2026-10-312026-10-31
Price sourcePrice sourcePrice source

Cost per request by usage

Without cache discounts or batch pricing.

UsageGemini 4 ArgonKimi K3.1 ProDifference
Chat message1K in / 500 out$0.007$7 per 1,000$0.007$7 per 1,000Same
Long document100K in / 2K out$0.22$220 per 1,000$0.22$220 per 1,000Same
Agent session500K in / 50K out$1.5$1,500 per 1,000$1.5$1,500 per 1,000Same

More price comparisons

Gemini 4 Argon vs other models

Kimi K3.1 Pro vs other models