Side-by-side comparison · models
Gemini 2.5 Flash Lite vs Gemini 3.5 Flash
What we have checked about each, line by line. Every value shows where it came from and when we last confirmed it.
Models
Gemini 2.5 Flash Lite
Gemini 2.5 Flash-Lite is a lightweight reasoning model in the Gemini 2.5 family, optimized for ultra-low latency and cost efficiency.
Models
Gemini 3.5 Flash
Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed.
Checked facts
Line by line
| Measure | Gemini 2.5 Flash Lite | Gemini 3.5 Flash |
|---|---|---|
| Input price | $0.100 per million tokens | $1.50 per million tokens |
| Output price | $0.400 per million tokens | $9.00 per million tokens |
| Price on google-ai-studio | $0.0050 per million cached input tokens | $0.075 per million cached input tokens |
| Price on google-ai-studio | $0.050 per million input tokens | $0.750 per million input tokens |
| Price on google-ai-studio | $0.200 per million output tokens | $4.50 per million output tokens |
| Price on google-vertex | Not checked yet | $0.075 per million cached input tokens |
| Price on google-vertex | Not checked yet | $0.750 per million input tokens |
| Price on google-vertex | Not checked yet | $4.50 per million output tokens |
| Latest version | google/gemini-2.5-flash-lite | google/gemini-3.5-flash-20260519 |
| Time to first token (ms) | 310 | 16,190 |
| Time to first token (ms) on google-ai-studio | 681 | 974 |
| Output speed (tokens a second) | 284.2 | 189.9 |
| Output speed (tokens a second) on google-ai-studio | 189 | 112 |
| Time to first token (ms) on google-vertex | Not checked yet | 13,449 |
| Output speed (tokens a second) on google-vertex | Not checked yet | 9 |
| Tokens served on OpenRouter in a day | 49.5B (for 10 Nov 2026) | 7.4B (for 10 Nov 2026) |
| Tool calls on OpenRouter in a day | 150.8K (for 10 Nov 2026) | 94.3K (for 10 Nov 2026) |
| Artificial Analysis Intelligence Index | 10.4 | 33.6 |
| Artificial Analysis Coding Index | Not checked yet | 70.1 |
| Artificial Analysis Agentic Index | Not checked yet | 26 |
| LMArena text rating (Elo) | Not checked yet | 1,483 |
| LMArena web development rating (Elo) | Not checked yet | 1,500 |
| LMArena vision rating (Elo) | Not checked yet | 1,308 |
| Design Arena rating (Elo) | Not checked yet | 1,265 |
| Gpqa diamond | Not checked yet | 92.8% (for 19 May 2026) |
| Swe bench verified | Not checked yet | 79.3% (for 19 May 2026) |
| Frontiermath tiers 1 3 v2 private | Not checked yet | 62.8% (for 19 May 2026) |
| Simpleqa verified | Not checked yet | 66.2% (for 19 May 2026) |
| Arc agi 2 | Not checked yet | 72.1% (for 19 May 2026) |
| Apex agents | Not checked yet | 27.5% (for 19 May 2026) |
| Arc agi | Not checked yet | 92.5% (for 19 May 2026) |
| Chess puzzles | Not checked yet | 45% (for 19 May 2026) |
| Dtbench | Not checked yet | 94.7% (for 19 May 2026) |
| Ebr bench | Not checked yet | 4.8% (for 19 May 2026) |
| Frontiermath 2025 02 28 private | Not checked yet | 39% (for 19 May 2026) |
| Frontiermath tier 4 2025 07 01 private | Not checked yet | 14.6% (for 19 May 2026) |
| Frontiermath tier 4 v2 private | Not checked yet | 26.8% (for 19 May 2026) |
| Lmca | Not checked yet | 47.2% (for 19 May 2026) |
| Mystery game puzzles | Not checked yet | 32% (for 19 May 2026) |
| Proofbench | Not checked yet | 31% (for 19 May 2026) |
| Simplebench | Not checked yet | 76.7% (for 19 May 2026) |
| Surface evolver bench | Not checked yet | 58.1% (for 19 May 2026) |
| Weirdml | Not checked yet | 62.6% (for 19 May 2026) |
| Otis mock aime 2024 2025 | Not checked yet | 95.6% (saturated benchmark: the top models all score near the ceiling) (for 19 May 2026) |
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