SummitGovOnline

GPT-5 vs Kimi K3

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

O

GPT-5

OpenAI

Overall 95
standard
View model →
MA

Kimi K3

Moonshot AI

Overall 91
standard
View model →

Capability radar

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

CodingReasoningWritingVisionContextValue
GPT-5Kimi K3
Comparison of GPT-5 vs Kimi K3
MetricGPT-5Kimi K3
Input Price / 1M$5.00$3.00
Output Price / 1M$20.00$15.00
Combined Price / 1M$25.00$18.00
Context Window400,0001,000,000
Coding Score9593
Reasoning Score9694
Vision Score9688
AudioYesNo
StreamingYesYes
Function CallingYesYes
Latency Tierstandardstandard
Release Date6/10/20267/16/2026

GPT-5 — Strengths & Weaknesses

Strengths

  • Frontier general intelligence
  • Strong tooling
  • Multimodal

Weaknesses

  • Premium pricing

Kimi K3 — Strengths & Weaknesses

Strengths

  • 1M context
  • Frontier coding/reasoning
  • Native multimodal

Weaknesses

  • Premium output pricing
  • Newer ecosystem tooling

Use Case Verdicts

Coding

GPT-5

GPT-5 scores 95 vs 93 on coding benchmarks.

General Chat

GPT-5

GPT-5 leads on writing quality (94 vs 90).

Long Context

Kimi K3

Kimi K3 offers 1M tokens vs 400K.

Cost Efficiency

Kimi K3

Kimi K3 is cheaper at $18.00/M combined vs $25.00/M.

Enterprise Use

Kimi K3

Kimi K3 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.