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GPT-4 1.5-mini vs o3: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare GPT-4 1.5-mini and o3 across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGPT-4 1.5-minio3
ProviderOpenAIOpenAI
Input Price / 1M tokens$0.150$10.00
Output Price / 1M tokens$0.600$40.00
Context Window
128K
200K
Max Output Tokens
4,096
100,000
Arena ELO
1,180
1,340
Coding ELO
1,200
1,320
TTFT (ms)
140
600
Tokens/sec
120
15
MultimodalNoNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use GPT-4 1.5-mini

GPT-4 1.5-mini excels at cost-effective, general-purpose tasks.

Strengths:

  • Affordable
  • Fast
  • Large context

Best for:

cost-effectivegeneral-purpose
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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