Head-to-head
DeepSeek V3 (Thinking) vs Gemini 3.5 Flash
As of October 25, 2026, Gemini 3.5 Flash leads DeepSeek V3 (Thinking) on the Analyzer Index, 82.6 to 82.0.
Normalized scores are min-maxed per benchmark across all models we track (0–100). Open the interactive compare view to add benchmarks to the radar chart or pull in more models.
DeepSeek V3 (Thinking)
DeepSeekGemini 3.5 Flash
Google| At a glance | DeepSeek V3 (Thinking) | Gemini 3.5 Flash |
|---|---|---|
| Analyzer Index | 82.0 (4/13) | 82.6 (6/13) |
| Blended price | $0.50/M | $1.69/M |
| Cheapest host | $0.44/M | maker's API |
| Context | 128k | 1.0M |
| Output speed | 25 tok/s | 369 tok/s |
| Time to first token | 1.73 s | 13.68 s |
| Benchmark | DeepSeek V3 (Thinking) | Gemini 3.5 Flash |
|---|---|---|
Chatbot Arena Elo Arena | ||
SWE-bench Verified SWE-bench | — | |
Output Speed Speed | ||
Time to First Token TTFT | ||
Rolling Contamination-Controlled Average Rolling Avg | — | |
Rolling Data Analysis Data Analysis | — | |
FrontierMath Tiers 1-3 FrontierMath | — | |
SimpleQA Verified SimpleQA | — | |
OTIS Mock AIME 2024-2025 OTIS AIME | — | |
ARC-AGI 2 ARC-AGI 2 | — | |
Aider Polyglot Aider | — | |
Frontier Composite Frontier | — |
Methodology matches the main AI Model Analyzer About page.