LLMversus

ChatGPT-4o Latest vs Grok 3: Pricing, Benchmarks & Verdict (2026)

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

⚡ Quick Answer

Compare ChatGPT-4o Latest and Grok 3 across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureChatGPT-4o LatestGrok 3
ProviderOpenAIxAI
Input Price / 1M tokens$5.00$3.00
Output Price / 1M tokens$15.00$15.00
Context Window
128K
200K
Max Output Tokens
16,384
8,192
Arena ELO
1,265
1,285
Coding ELO
1,270
1,280
TTFT (ms)
150
200
Tokens/sec
100
90
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use ChatGPT-4o Latest

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

Strengths:

  • Latest GPT-4o
  • Improved performance
  • Always updated

Best for:

general-purposemultimodalfunction-calling
When to Use Grok 3

Grok 3 excels at general-purpose, coding, reasoning tasks.

Strengths:

  • Latest xAI model
  • Strong reasoning
  • Large context

Best for:

general-purposecodingreasoning

Related Comparisons

Claude Opus 4 vs Grok 3ChatGPT-4o Latest vs Claude Opus 4Claude Sonnet 4 vs Grok 3ChatGPT-4o Latest vs Claude Sonnet 4Gemini 2 5 Pro vs Grok 3ChatGPT-4o Latest vs Gemini 2 5 ProClaude Haiku 4 vs Grok 3ChatGPT-4o Latest vs Claude Haiku 4Deepseek R1 vs Grok 3ChatGPT-4o Latest vs Deepseek R1Grok 3 vs Qwen 2 5 MaxChatGPT-4o Latest vs Qwen 2 5 MaxGemini 2 0 Flash vs Grok 3ChatGPT-4o Latest vs Gemini 2 0 FlashDeepseek V3 vs Grok 3ChatGPT-4o Latest vs Deepseek V3Grok 3 vs O3 MiniChatGPT-4o Latest vs O3 MiniGrok 3 vs O3ChatGPT-4o Latest vs O3