WhichAI.todayGemini 4 Argon
Pick this when you want a close legal score for less money.
Skip it for privileged client files unless your Google account terms allow that use.
Vals LegalBench 88.3%
Gemini 4 Argon vs Kimi K3
Updated Nov 13, 2026. Checked daily.
The short answer
Gemini 4 Argon ranks ahead for legal & long documents, writing & marketing. Kimi K3 ranks ahead for coding & software.
Gemini 4 Argon
2 of 3 jobs ahead
Paid plan
Kimi K3
1 of 3 jobs ahead
Free (limited)
Head to head, job by job
Each job ranks a #1, an alternative, and an open-weights pick from public leaderboards. Bars compare the two scores on that job's own signal.
Which one should you pick?
Kimi K3
Moonshot AI
Pick this when the code cannot leave your own machines.
Skip self-hosting if you lack multi-GPU cluster infrastructure required to serve 2.8 trillion parameters.
88.2% on SWE-bench Pro V2 HARD
Price, access, and privacy
Gemini 4 ArgonKimi K3
Cost
Google AI Pro is $19.99/month. API is $2 per million input tokens until Nov 30, 2026, then $4.
Free to download weights; hosted Kimi app is free with usage limits or available via API.
Free tier
Not on the free Gemini plan. Argon needs AI Pro or Ultra.
Yes, available for free with standard rate limits in the Kimi web and mobile apps.
Where to get it
Apps
- Gemini, Google AI Pro ($19.99/month)
- Perplexity, Max ($200/month)
- Cursor, Premium ($30/month)
- GitHub Copilot, Copilot Pro ($10/month)
- Perplexity, Pro ($20/month)
- Cursor, Premium ($30/month)
- GitHub Copilot, Copilot Pro ($10/month)
- Hugging Face, Free (Free)
- Ollama, Pro ($20/month)
Trains on chats
Yes for adults. Gemini Apps Activity is on by default, and those chats can be used to improve Google AI. Gemini Apps Activity, turn off Keep Activity. Safety review can still apply.
Yes. The Kimi consumer policy says prompts and files can be used to improve models. Ask Kimi support to stop training use if the app has no toggle.
Try both with the same prompt
Gemini 4 Argon
Read this filing and list the risks, the numbers, and anything that changed.
Kimi K3
Refactor this module for clarity and add tests for the edge cases.
Want a sharper prompt? Build one for either model.
Ranking history
- Nov 12, 2026. Gemini 4 Carbon overtook Gemini 4 Argon. LMArena Text overall 1526
- Nov 8, 2026. Gemini 4 Argon overtook Claude Opus 5.5. LMArena Creative Writing 1525
- Oct 24, 2026. Ranking method updated. Claude Opus 5.5 leads on the new signal. Writing now ranks on LMArena Creative Writing instead of the general text board. Claude Opus 5.5 leads that board (1520).
- Oct 23, 2026. Gemini 4 Argon is the first leader on record. LMArena Text overall 1517
- Oct 23, 2026. Gemini 4 Argon is the first leader on record. LMArena Text overall 1517
Questions
Is Gemini 4 Argon or Kimi K3 better for coding & software?
Kimi K3 ranks ahead for coding & software on LMArena Code. Gemini 4 Argon is not in today's top three; Kimi K3 is the open weights pick.
Is Gemini 4 Argon or Kimi K3 better for legal & long documents?
Gemini 4 Argon ranks ahead for legal & long documents on Vals LegalBench. Gemini 4 Argon is the alternative pick (88.3); Kimi K3 is the open weights pick (86.2).
Is Gemini 4 Argon or Kimi K3 better for writing & marketing?
Gemini 4 Argon ranks ahead for writing & marketing on LMArena Creative Writing. Gemini 4 Argon is the #1 pick (1526); Kimi K3 is not in today's top three.
Which is cheaper, Gemini 4 Argon or Kimi K3?
Gemini 4 Argon: Google AI Pro is $19.99/month. API is $2 per million input tokens until Nov 30, 2026, then $4. Kimi K3: Free to download weights; hosted Kimi app is free with usage limits or available via API.
Can I use Gemini 4 Argon or Kimi K3 for free?
Gemini 4 Argon: Not on the free Gemini plan. Argon needs AI Pro or Ultra. Kimi K3: Yes, available for free with standard rate limits in the Kimi web and mobile apps.
Which is more private, Gemini 4 Argon or Kimi K3?
Gemini 4 Argon (Google): Yes for adults. Gemini Apps Activity is on by default, and those chats can be used to improve Google AI. Kimi K3 (Moonshot AI): Yes. The Kimi consumer policy says prompts and files can be used to improve models.