LLMversus

GPT-4o vs Phi-3 Medium: Pricing, Benchmarks & Verdict (2026)

Pricing verified Aug 3, 2026By LLMversusUpdated August 8, 2026View methodology

⚡ Quick Answer

Compare GPT-4o and Phi-3 Medium across pricing, benchmarks, and capabilities.

Updated: August 3, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGPT-4oPhi-3 Medium
ProviderOpenAIMicrosoft
Input Price / 1M tokens$2.50$0.170
Output Price / 1M tokens$10.00$0.170
Context Window
128K
128K
Max Output Tokens
16,384
4,096
Arena ELO
1,346
1,170
Coding ELO
1,346
1,175
TTFT (ms)
230
150
Tokens/sec
95
100
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionYesNo
When to Use GPT-4o

GPT-4o excels at general-purpose, multimodal, function-calling tasks.

Strengths:

  • Fast response times
  • Strong multimodal capabilities
  • Code execution support

Best for:

general-purposemultimodalfunction-calling
When to Use Phi-3 Medium

Phi-3 Medium excels at cost-effective, general-purpose tasks.

Strengths:

  • Affordable
  • Fast
  • Good instruction following

Best for:

cost-effectivegeneral-purpose

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