LLMversus

GPT-4o (Aug 2024) vs Phi-3.5 MoE: Pricing, Benchmarks & Verdict (2026)

Pricing verified Sep 14, 2026By LLMversusUpdated September 17, 2026View methodology

⚡ Quick Answer

Compare GPT-4o (Aug 2024) and Phi-3.5 MoE across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGPT-4o (Aug 2024)Phi-3.5 MoE
ProviderOpenAIMicrosoft
Input Price / 1M tokens$2.50$0.170
Output Price / 1M tokens$10.00$0.680
Context Window
128K
128K
Max Output Tokens
16,384
4,096
Arena ELO
1,255
1,195
Coding ELO
1,265
1,190
TTFT (ms)
150
150
Tokens/sec
100
100
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use GPT-4o (Aug 2024)

GPT-4o (Aug 2024) excels at general-purpose, multimodal, function-calling tasks.

Strengths:

  • Fast response times
  • Strong multimodal
  • Code execution

Best for:

general-purposemultimodalfunction-calling
When to Use Phi-3.5 MoE

Phi-3.5 MoE excels at general-purpose, cost-effective tasks.

Strengths:

  • Mixture of experts
  • Efficient
  • Balanced performance

Best for:

general-purposecost-effective

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