LLMversus

GPT-4o vs Grok 3-mini: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 20, 2026By LLMversusUpdated June 14, 2026View methodology

⚡ Quick Answer

Grok 3 Mini is significantly cheaper at $0.30/$0.50 per million tokens vs $2.50/$10.00. GPT-4o is stronger for coding with a coding ELO of 1265 vs 1200. GPT-4o ranks higher overall with an Arena ELO of 1260 vs 1220.

Updated: April 20, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGPT-4oGrok 3-mini
ProviderOpenAIxAI
Input Price / 1M tokens$2.50$0.300
Output Price / 1M tokens$10.00$0.500
Context Window
128K
128K
Max Output Tokens
16,384
4,096
Arena ELO
1,260
1,175
Coding ELO
1,265
1,190
TTFT (ms)
230
130
Tokens/sec
95
140
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionYesNo
When to Use GPT-4o

Choose GPT-4o when you need: fast response times, strong multimodal capabilities, code execution support. It 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 Grok 3-mini

Choose Grok 3 Mini when you need: very affordable pricing, fast response times, good for simple tasks, reasoning capabilities at low cost. It excels at chatbots, cost-sensitive, lightweight-tasks tasks. It is also the more cost-effective option between the two.

Strengths:

  • Very cheap
  • Fast
  • Large context

Best for:

cost-effectivegeneral-purpose

Frequently Asked Questions

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