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Gemini 1.5 Pro vs o3: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Gemini 1.5 Pro and o3 across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGemini 1.5 Proo3
ProviderGoogleOpenAI
Input Price / 1M tokens$1.25$10.00
Output Price / 1M tokens$5.00$40.00
Context Window
2M
200K
Max Output Tokens
8,192
100,000
Arena ELO
1,230
1,340
Coding ELON/A1,320
TTFT (ms)
150
600
Tokens/sec
100
15
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionYesNo
When to Use Gemini 1.5 Pro

Gemini 1.5 Pro excels at multimodal, long-context, vision tasks.

Strengths:

  • Largest context window (2M)
  • Strong multimodal
  • Video understanding

Best for:

multimodallong-contextvision
When to Use o3

o3 excels at reasoning, coding, math tasks.

Strengths:

  • Highest reasoning capability
  • Best math performance
  • Code execution

Best for:

reasoningcodingmath

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