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Gemini 3.1 Pro Preview vs o1

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Gemini 3.1 Pro Preview and o1.

Google

Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

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OpenAI

o1

The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason...

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Technical Specifications

SpecificationGemini 3.1 Pro Previewo1
ProviderGoogleOpenAI
Context Window1,048,576 tokens200,000 tokens
Agent SuitabilityN/A88/100
Time to First Token (TTFT)N/A2500 ms
Deployment Modelmanaged apimanaged api
Production Stabilitybetastable
API AvailableYesYes
Released Date2026-02-192024-12-17

API Pricing Comparison

Input Price per Million Tokens

Gemini 3.1 Pro Preview

$2.00

o1

$15.00

Output Price per Million Tokens

Gemini 3.1 Pro Preview

$12.00

o1

$60.00

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
N/Avs9180.0%
Gemini 3.1 Pro Preview
o1
HumanEvalPython coding & logic synthesis
N/Avs9450.0%
Gemini 3.1 Pro Preview
o1
MATHComplex mathematical problem solving
N/Avs9480.0%
Gemini 3.1 Pro Preview
o1
GPQAGraduate-level expert reasoning
N/Avs7830.0%
Gemini 3.1 Pro Preview
o1
HellaSwagCommonsense reasoning and inference
N/Avs9200.0%
Gemini 3.1 Pro Preview
o1
MT-BenchMulti-turn conversation flow quality
N/Avs940.0%
Gemini 3.1 Pro Preview
o1

Gemini 3.1 Pro Preview Quirks & Gotchas

No developer gotchas reported.

o1 Quirks & Gotchas

  • Reasoning model — high latency by design, not for real-time use
  • Best for complex math/code reasoning where accuracy > speed
  • Use o3-mini when you need reasoning with lower latency