LLMversus

GPT-4 1.5-mini vs Grok 2: Pricing, Benchmarks & Verdict (2026)

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

⚡ Quick Answer

Compare GPT-4 1.5-mini and Grok 2 across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGPT-4 1.5-miniGrok 2
ProviderOpenAIxAI
Input Price / 1M tokens$0.400$2.00
Output Price / 1M tokens$1.60$10.00
Context Window
128K
131.072K
Max Output Tokens
4,096
4,096
Arena ELO
1,180
1,240
Coding ELO
1,200
1,225
TTFT (ms)
140
150
Tokens/sec
120
100
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 Grok 2

Grok 2 excels at general-purpose, coding tasks.

Strengths:

  • Large context window
  • Good reasoning
  • Competitive performance

Best for:

general-purposecoding

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