Gemini 4 Argon vs Gemini 4 Carbon
API pricing, context, and independently measured performance, side by side.
Gemini 4 Argon
Google · released Oct 13, 2026
Best input$2.00 / MTok
Best output$10.00 / MTok
Context1.05M
Providers6
Fastest measured4.3s° TTFT · 90 tok/s
VisionToolsReasoningStructured outputPrompt caching
Gemini 4 Carbon
Google · released Nov 10, 2026
Best input$2.00 / MTok
Best output$10.00 / MTok
Context1.05M
Providers7
Fastest measured18.7s° TTFT · 91 tok/s
VisionToolsReasoningStructured outputPrompt caching
Cheapest providers, measuredUSD / MTOK
| MODEL | PROVIDER | INPUT | OUTPUT | TTFT | TPS | SMOKE |
|---|---|---|---|---|---|---|
| Gemini 4 Argon |  Google | $2.00 | $10.00 | 6.3s° | 58° tok/s | — |
| Gemini 4 Argon |  Google AI Studio | $2.00 | $10.00 | 4.3s° | 90° tok/s | — |
| Gemini 4 Carbon | Google | $2.00 | $10.00 | 18.7s° | 91° tok/s | — |
| Gemini 4 Carbon | Google AI Studio | $2.00 | $10.00 | — | — | — |
TTFT/TPS: ModelIndex-measured medians (P50, trailing 21d) · chat10k profile (~10K in / 200 out) · ° = measured via OpenRouter routing (adds a hop) · SMOKE: of 5 programmatic capability probes passed · methodology v1.1 — full details on each model page