ChatBench
App9 creditsSign in or create account

Get a second opinion on code before it ships.

Give the same code to current leading models and compare their reasoning, edge cases, and suggested fixes without losing the exact model and usage evidence.

Try the comparison workspace
  • Correctness
  • Edge cases
  • Actionable fixes

Ask once.
Get a second opinion.✨

Compare answers side by side across GPT, Claude, Gemini, and DeepSeek with transparent speed and cost evidence.

2 modelsEstimate before run
💰 AI Subscription Calculator

How much are you spending on separate AI tabs?

Select your subscriptions, then enter your own expected ChatBench usage budget.

Current Total Spend$40 / month($480 / year)
vs
$/ month+ 50 Free Monthly Credits
🎉
Enter your expected ChatBench budget to compare

This is a planning estimate based only on the amounts you enter; actual usage and savings vary.

50monthly creditsFree App9 Account · no card
9model familiesIncluding NVIDIA Nemotron
Currentmodel versionsRate card Aug 22, 2026
Independentbenchmark contextReview the evidence

Compare leading models with 50 monthly credits—no card required.

Start free, then add files, more simultaneous models, and premium variants when the work calls for them.

See speed, token use, and settled credits for every answer.
Free$0

Use every standard model family with the monthly App9 account credit grant.

  • Uses your shared App9 credit wallet
  • Compare up to 2 models
  • 9 model families, including NVIDIA Nemotron
  • Prompt-only comparisons
Start free
Starter$5/month

Persistent chat history, attachments, and two-model comparisons.

  • Uses your shared App9 credit wallet
  • Compare up to 2 models
  • 9 model families, including NVIDIA Nemotron
  • Files up to 10 MB
Most popularPro$20/monthAbout 67¢/day

Larger context, larger files, and four-model comparisons.

  • Uses your shared App9 credit wallet
  • Compare up to 4 models
  • 9 model families, including NVIDIA Nemotron
  • Files up to 25 MB
Max$40/month

9-model comparisons, premium variants, and priority processing.

  • Uses your shared App9 credit wallet
  • Compare up to 9 models
  • 9 model families, including NVIDIA Nemotron
  • Files up to 50 MB
  • Premium model variants
  • Priority processing