Home › Compare › Google: Gemini 3.8 Flash vs Google: Gemini 4 Argon

Google: Gemini 3.8 Flash vs Google: Gemini 4 Argon: API Pricing Compared

Comparing Google: Gemini 3.8 Flash and Google: Gemini 4 Argon: on combined input+output list price, Google: Gemini 3.8 Flash is cheaper at $4.95 vs $12 per 1M tokens — a difference of $7.05 (59%). Google: Gemini 3.8 Flash costs $0.825 in / $4.125 out with a 1,048,576-token context; Google: Gemini 4 Argon costs $2 in / $10 out with a 1,048,576-token context.
Google: Gemini 3.8 FlashGoogle: Gemini 4 Argon
Input /1M$0.825$2
Output /1M$4.125$10
Cached input /1M$0.0825$0.1
Context window1,048,5761,048,576
Max output tokens65,536943,718
Cost @ 10M in + 2M out / mo$16.5$40

Estimate your own workload in the cost calculator, or open the full pages for Google: Gemini 3.8 Flash and Google: Gemini 4 Argon.

Frequently asked questions

Which is cheaper, Google: Gemini 3.8 Flash or Google: Gemini 4 Argon?

Google: Gemini 3.8 Flash is cheaper on combined list price: $4.95 vs $12 per 1M tokens (input + output). At 10M input + 2M output tokens per month, Google: Gemini 3.8 Flash costs $16.5 and Google: Gemini 4 Argon costs $40.

Which has the larger context window, Google: Gemini 3.8 Flash or Google: Gemini 4 Argon?

Google: Gemini 3.8 Flash has a context window of 1,048,576 tokens; Google: Gemini 4 Argon has 1,048,576 tokens. The larger one is Google: Gemini 3.8 Flash.

Price snapshot October 21, 2026, refreshed daily.