Gemini 3 Pro
ECI#35
153Gemini 3 Pro is a closed-weights model from Google DeepMind, released November 18, 2025. It has an ECI score of 153 and ranks 35th of 249 tracked models. At the time of its release, it ranked 1st of 172 tracked models. At $2/Mtok for input tokens and $12/Mtok for output tokens, it is more expensive per token than similarly-capable models.
Input price$2 / 1M tokens
Output price$12 / 1M tokens
ParametersUnknown
Training computeUnknown
Gemini 3 Pro vs select alternatives
Reasoning
| Domain | Benchmark | Gemini 3 Pro | |||
|---|---|---|---|---|---|
ECI scoreBest score 166 | 153 | 145 | 150 | 147 | |
| Ranking | #35 | #76 | #43 | #61 | |
| Agent | GDPvalBest score 49.7% | ||||
| Conceptual reasoning | ARC-AGI-2Best score 95.0% | ||||
ARC-AGI-1Best score 98.5% | |||||
| Games | Chess PuzzlesBest score 72.0% | ||||
| Mathematics | OTIS Mock AIME 2024-2025Best score 100.0% | ||||
| Science | Humanity's Last ExamBest score 46.5% | ||||
GPQA DiamondBest score 95.8% | |||||
| Software engineering | METR Time HorizonsBest score 1044.8 | 224.3 | 38.7 | — | 121.9 |
SWE-bench VerifiedBest score 83.5% |
