Google · OpenAI
Gemini 3.1 Pro vs GPT-5.5 Pro
Compare Gemini 3.1 Pro (Google) and GPT-5.5 Pro (OpenAI) on benchmarks, capabilities, and pricing.
At a glance
| Gemini 3.1 Pro | GPT-5.5 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Context | 1M tokens | 1M tokens |
| Modality | Multimodal | Multimodal |
| Pricing | Max | Max |
| Speed | Medium | Slow |
| Reasoning | Expert | Expert |
Benchmarks
Gemini 3.1 Pro
- AA Intelligence Index
- Output speed
- 125.03tokens/sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
- API input cost
- API output cost
- Context window
- 1MCatalog · As of Aug 11, 2026Stale · 31d old
Benchmark variant: Gemini 3.1 Pro Preview
AA data retrieved Sep 11, 2026 · Artificial Analysis
GPT-5.5 Pro
- AA Intelligence Index
- 57pointsEstimated · As of Aug 11, 2026Stale · 31d old
- Output speed
- 78tokens/sEstimated · As of Aug 11, 2026Stale · 31d old
- API input cost
- API output cost
- Context window
- 1MEstimated · As of Aug 11, 2026Stale · 31d old
Benchmark variant: GPT-5.5 Pro (xhigh)
AA data retrieved Sep 11, 2026 · Artificial Analysis
Try both on yno.ai
Switch between Gemini 3.1 Pro and GPT-5.5 Pro per task with one account.
Frequently asked
- Which is faster, Gemini 3.1 Pro or GPT-5.5 Pro?
- Gemini 3.1 Pro is rated medium and GPT-5.5 Pro is rated slow. yno.ai surfaces output-speed scores from Artificial Analysis on each model's detail page so you can compare exact tokens-per-second figures for your workload.
- Which is cheaper, Gemini 3.1 Pro or GPT-5.5 Pro?
- Gemini 3.1 Pro is on the max tier in yno.ai; GPT-5.5 Pro is on the max tier. See the pricing page for the latest per-tier limits.
- Which is better for Complex reasoning?
- Both models support Complex reasoning. Gemini 3.1 Pro brings Google-reported ARC-AGI-2 77.1% at launch; GPT-5.5 Pro brings Additional reasoning compute. Run a side-by-side eval on your prompts in yno.ai to see which fits your workload.
- Can I use both Gemini 3.1 Pro and GPT-5.5 Pro in yno.ai?
- Yes. Both are available on yno.ai under your single account; you can route different stages of an agent to different models or A/B test them on the same prompt without per-provider boilerplate.