SummitGovOnline

GPT-4.1 vs Kimi K3

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

O

GPT-4.1

OpenAI

Overall 92
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-4.1Kimi K3
Comparison of GPT-4.1 vs Kimi K3
MetricGPT-4.1Kimi K3
Input Price / 1M$2.00$3.00
Output Price / 1M$8.00$15.00
Combined Price / 1M$10.00$18.00
Context Window1,047,5761,000,000
Coding Score9493
Reasoning Score9294
Vision Score9088
AudioYesNo
StreamingYesYes
Function CallingYesYes
Latency Tierstandardstandard
Release Date4/14/20257/16/2026

GPT-4.1 — Strengths & Weaknesses

Strengths

  • Massive context
  • Strong coding
  • Competitive pricing

Weaknesses

  • Newer model with evolving tooling

Kimi K3 — Strengths & Weaknesses

Strengths

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

Weaknesses

  • Premium output pricing
  • Newer ecosystem tooling

Use Case Verdicts

Coding

GPT-4.1

GPT-4.1 scores 94 vs 93 on coding benchmarks.

General Chat

GPT-4.1

GPT-4.1 leads on writing quality (93 vs 90).

Long Context

GPT-4.1

GPT-4.1 offers 1M tokens vs 1M.

Cost Efficiency

GPT-4.1

GPT-4.1 is cheaper at $10.00/M combined vs $18.00/M.

Enterprise Use

Kimi K3

Kimi K3 combines strong reasoning, tooling, and context for enterprise workloads.

Agent Workflows

Kimi K3

Kimi K3 is better suited for agentic workflows with tool use and coding capability.