GPT vs Kimi at a glance
| GPT | Kimi | |
|---|---|---|
| Developer | OpenAI | Moonshot AI |
| Latest version | GPT-5.6 | Kimi K3 |
| Known for | All-rounder | Long-context |
| Context window | 128K tokens on Plus; 16K on the free tier | Up to 1 million tokens |
| Multimodal support | Text, images, and files | Text, images, and video |
| Open source | No | Partially |
| Official pricing | Free tier available; Plus is $20/mo, Pro is $200/mo | Free to chat here; API from $0.30 per million cached tokens |
GPT benchmark highlight
Leads SWE-bench Verified among frontier models, scoring above 96%
Kimi benchmark highlight
Ranked #1 on LMArena's Frontend Code Arena, ahead of GPT and Claude on that leaderboard
Which one should you use?
Choose GPT if you want:
- General-purpose assistant
- Coding & debugging
- Data analysis
- Everyday productivity
Choose Kimi if you want:
- Large document analysis
- Long-context research
- Cost-efficient agentic tasks
- Processing books & lengthy reports
Standout strengths
GPT
Solid context window
ChatGPT Plus offers a 128K-token context window, enough to work with lengthy documents or codebases in one conversation.
Sharp coding ability
ChatGPT consistently leads coding benchmarks, from quick scripts to full agentic development workflows.
Low hallucination rate
Newer versions of ChatGPT state incorrect information far less often than earlier GPT generations.
Kimi
1M-token context window
Reads entire books, research papers, or codebases in a single pass without losing track.
Fast decoding at scale
A hybrid attention mechanism keeps long-context responses fast instead of slowing to a crawl.
Native vision understanding
Combines strong vision and language understanding in one model, not a separate add-on.
Frequently asked questions
Try GPT and Kimi for free
No credit card, no account required — pick GPT for general-purpose assistant, or Kimi for large document analysis.