Gemini 3.1 Pro vs Seed 1.8
24 SHARED BENCHMARKSAcross 24 shared benchmarks, Gemini 3.1 Pro scores higher on 18 and Seed 1.8 on 6. The widest gap is Terminal-Bench 2.0, where Gemini 3.1 Pro scores 68.5 against 45.2. Seed 1.8 is the cheaper of the two on tracked API pricing ($0.25 against $2.00 per million input tokens).
At a glance
Gemini 3.1 Pro's release date per Artificial Analysis. Prices: Artificial Analysis for Gemini 3.1 Pro; deepinfra for Seed 1.8. ◆ = independently verified score.
Where each leadsby capability area · benchmark wins
Biggest gaps
Gemini 3.1 Pro pulls furthest ahead on
- BrowseComp85.9 vs 67.6
- OSWorld-Verified76.2 vs 61.9
- CharXiv (RQ)83.3 vs 71.4
Seed 1.8 pulls furthest ahead on
No ratified-area lead of 3 points or more.
Every shared benchmark24 · grouped by area
Coding 2
Agentic 2
Instruction Following 1
Multimodal 4
Other shared benchmarks 15
Each score is the one the model's own page shows — the most authoritative tracked result for that benchmark, on the benchmark's standard methodology (source-attributed). ↓ marks lower-is-better metrics; ◆ an independently verified score. Open either model for its full surface, provenance and pricing. Quoted rates are the price-setter row we currently track for each model — its direct or vendor-official listing where one exists (direct, deepinfra), otherwise the lowest tracked offer.