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Gemini 2.0 Flash Thinking vs o3-mini: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Gemini 2.0 Flash Thinking and o3-mini across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGemini 2.0 Flash Thinkingo3-mini
ProviderGoogleOpenAI
Input Price / 1M tokens$0.00$1.10
Output Price / 1M tokens$0.00$4.40
Context Window
32K
128K
Max Output Tokens
16,384
65,536
Arena ELO
1,280
1,280
Coding ELO
1,270
1,285
TTFT (ms)
150
350
Tokens/sec
100
25
MultimodalNoNo
JSON ModeYesYes
Function CallingYesNo
VisionNoNo
When to Use Gemini 2.0 Flash Thinking

Gemini 2.0 Flash Thinking excels at reasoning, general-purpose tasks.

Strengths:

  • Free reasoning model
  • Strong math & logic
  • Extended thinking

Best for:

reasoninggeneral-purpose
When to Use o3-mini

o3-mini excels at reasoning, math, general-purpose tasks.

Strengths:

  • Strong reasoning
  • Good math skills
  • Affordable reasoning

Best for:

reasoningmathgeneral-purpose

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