THE TICKER · HEAD-TO-HEAD · CHECKED DAILY · LAST CHANGE 2026-09-06
GEMINI 3.5 FLASH VS DEEPSEEK V4 FLASH
Google vs DeepSeek, in USD per million tokens, cross-checked daily against the public pricing dataset. Same jobs, both meters running.
Gemini 3.5 Flash costs 13.0x more than DeepSeek V4 Flash for the same job — a 1,000-token prompt with a 3,000-token reply runs $0.03 vs $0.0022. At 1,000 runs a day, that gap is $789.00 a month for identical traffic.
SIDE BY SIDE
| Gemini 3.5 Flash → | DeepSeek V4 Flash → | |
|---|---|---|
| Vendor | DeepSeek | |
| Input / MTok | $1.50 | $0.220 |
| Output / MTok | $9.00 | $0.660 |
| Output multiple | 6.0x | 3.0x |
| 1K prompt + 3K reply | $0.03 | $0.0022 |
SAME JOB, BOTH BILLS
| Scenario | Gemini 3.5 Flash | DeepSeek V4 Flash | Gap |
|---|---|---|---|
| A typical prompt | $0.0086 | $0.0007 | 13.0x |
| A 20-turn conversation | $0.04 | $0.0035 | 11.9x |
| Summarizing a 10-page document | $0.04 | $0.0039 | 10.5x |
| One agent run | $0.11 | $0.0084 | 13.3x |
| A code review request | $0.04 | $0.0028 | 12.8x |
Output sizes use the same editorial ratios as the Burn Calculator. Estimates, not invoices — and price is not a benchmark: the cheaper model is only a bargain if it does the job.
SETTLE IT WITH YOUR OWN PROMPT
Paste a real prompt into the Burn Calculator and see what it costs on Gemini 3.5 Flash, DeepSeek V4 Flash and the other 23 models on the board — plus how much of it is waste either way.