DeepSeek V4 Flash vs Gemini 3.5 Flash
Side-by-side comparison across metrics, pricing, and overall score — every value traced to a source.
Verdict: DeepSeek V4 Flash ranks highest overall (#1) with a score of 70.9.
The best choice still depends on which metrics matter for your workload — per-metric winners are marked below.
What the numbers hide
Computed from the published values below — no estimates, no generated claims.
Fragile verdict
The overall winner flips to Gemini 3.5 Flash if Context Window is weighted at 55% (it counts for 25% today). If context window drives your decision, the ranking above may not be your ranking.
Real tradeoff
DeepSeek V4 Flash clearly beats Gemini 3.5 Flash on Input Price but clearly loses on Context Window — this pair is a priorities question, not a quality question.
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| Metric | DeepSeek V4 FlashDeepSeek | Gemini 3.5 FlashGoogle |
|---|---|---|
| Overall OptiSift Score | 70.9#1 | 33.1#7 |
| Input Price | $0.14 | $1.5 |
| Output Price | $0.28 | $9 |
| Cache Read Price | $0 | $0.15 |
| Context Window | 1M | 1.0M |
| Max Output Tokens | 384K | 66K |
| Tool Calling | Yes | Yes |
| Extended Reasoning | Yes | Yes |