4.9 / 5on ProvenExpert

Claude, GPT-6, Grok and Gemini in one chat

Every top model in one place, no separate subscriptions. In Sumus each AI teammate runs on the model you pick, and they check each other's work before you see it.

The latest flagship models, together.

  • Claude
  • GPT
  • Grok
  • DeepSeek
  • Gemini

Models available in Sumus

Claude

Opus 5.5 (default), Sonnet 5.5, Fable 5.1 and Haiku 5.5, with reasoning effort adjustable up to max. 1M context, 128K output. New Claude models go live as soon as they ship.

GPT

GPT-6 family.

Grok

Grok 4.7.

Gemini

Gemini 4 family and Gemini Flash.

DeepSeek and more

DeepSeek V4, plus GLM, Kimi, Qwen, MiniMax and Mercury.

A model for every teammate.

Pick Opus 5.5 for the hard reasoning, Haiku 5.5 for fast lookups, GPT-6 for a second draft and Grok 4.7 for what's trending. Switch any teammate's model in a click.
AI teammates on different models

Cross-review by different models.

Ask a Claude teammate to write and a GPT or Grok teammate to review line by line. Different models catch different mistakes, so the result you get has already been checked.
A Claude teammate writing while a GPT teammate reviews

One account, no subscription juggling.

No separate Claude Pro, ChatGPT or Grok plan. Sign up for Sumus and every model is there, sharing one context in one conversation.
All models in one Sumus conversation

Start free, upgrade when you need more

Free

Everything you need to get started.

$0/ month

  • 1,000 credits per month
  • Up to 3 members
  • Up to 10 AI teammates
  • No credit card required

Extra credits

More credits when you need them.

$20/ month

  • For all cloud AI teammates
  • Renews monthly. Unused credits do not roll over.

Multi-model FAQ

Can I use Claude and GPT in the same chat?

Yes. Add a Claude teammate and a GPT teammate to the same conversation; they share context and can review each other.

Which models does Sumus support?

Claude Opus 5.5, Sonnet 5.5, Fable 5.1 and Haiku 5.5; GPT-6; Grok 4.7; Gemini; DeepSeek; plus GLM, Kimi, Qwen, MiniMax and more. Each AI teammate can run on a different model, and new Claude models go live as soon as they ship.

Do I need a Claude or ChatGPT subscription?

No. Sumus gives you the models directly.

Which model should I pick?

Opus 5.5 or Fable 5.1 for complex work and code, Sonnet 5.5 for everyday work, Haiku 5.5 or Flash models for quick tasks, and a different vendor's model as reviewer.

Is it free?

Yes. The Free plan is $0 and includes 1,000 credits every month, up to 3 members and up to 10 AI teammates. Plus is $24/month ($20/month billed yearly) with 3,600 credits a month, up to 25 members and 300 AI teammates.

Every top model. One chat.

Start free with 1,000 credits a month and give each AI teammate its own model.

Start free