SummitGovOnline

GPT-5 vs Grok 3

Side-by-side comparison of pricing, capabilities, benchmarks, and use case fit.

O

GPT-5

OpenAI

Overall 95
standard
View model →
X

Grok 3

xAI

Overall 88
standard
View model →

Capability radar

Normalized coding, reasoning, writing, vision, context, and value

CodingReasoningWritingVisionContextValue
GPT-5Grok 3
Comparison of GPT-5 vs Grok 3
MetricGPT-5Grok 3
Input Price / 1M$5.00$3.00
Output Price / 1M$20.00$15.00
Combined Price / 1M$25.00$18.00
Context Window400,000131,072
Coding Score9591
Reasoning Score9692
Vision Score9682
AudioYesNo
StreamingYesYes
Function CallingYesYes
Latency Tierstandardstandard
Release Date6/10/20262/17/2025

GPT-5 — Strengths & Weaknesses

Strengths

  • Frontier general intelligence
  • Strong tooling
  • Multimodal

Weaknesses

  • Premium pricing

Grok 3 — Strengths & Weaknesses

Strengths

  • Strong reasoning
  • Think mode
  • Competitive coding

Weaknesses

  • Limited context vs Google/OpenAI

Use Case Verdicts

Coding

GPT-5

GPT-5 scores 95 vs 91 on coding benchmarks.

General Chat

GPT-5

GPT-5 leads on writing quality (94 vs 88).

Long Context

GPT-5

GPT-5 offers 400K tokens vs 131.1K.

Cost Efficiency

Grok 3

Grok 3 is cheaper at $18.00/M combined vs $25.00/M.

Enterprise Use

GPT-5

GPT-5 combines strong reasoning, tooling, and context for enterprise workloads.

Agent Workflows

GPT-5

GPT-5 is better suited for agentic workflows with tool use and coding capability.