gemini-3.5-pro pricing
gemini-3.5-pro is priced at $2.50 per 1M input tokens and $12.00 per 1M output tokens, with roughly 140 ms to first token and about 140 tokens/sec output throughput.
Price per 1M tokens
Input $2.50 · Output $12.00 · Output/input ratio 4.8x.
- 1M input + 1M output tokens: $14.50
- 10M input + 2M output tokens/month: $49.00
- 100M input + 20M output tokens/month: $490.00
Cheaper alternatives to gemini-3.5-pro
Same workload, lower output price. Validate quality before switching.
- gemini-2.5-pro — $10.00/1M output (17% cheaper)
- llama-4.1-405b — $8.00/1M output (33% cheaper)
- gpt-5.2 — $8.00/1M output (33% cheaper)
- gpt-4.1 — $8.00/1M output (33% cheaper)
How much are you wasting on gemini-3.5-pro?
Price lists are the easy part. Run the free waste scanner on your usage export to see which calls should have run on a cheaper tier, which prompts are oversized, and which retries you paid for twice — with dollars recoverable per finding.