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Kayts Siran

Siran: an Armenian name that means lovely

Kayts Siran takes on demanding work: detailed analysis, code and careful multi-step answers. For harder questions it reasons before it answers; you choose how long.

Try Kayts Siran Compare the models
  • From the Pro plan

What it can do

Reads images

Add photos or screenshots to a message and ask about what's in them.

Thinking mode

For harder questions it reasons before it answers; you choose how long it may think.

Research tools

Looks up papers on its own, reads the links you send, and cites its sources.

1M tokens of context

How much it keeps in view at once: your conversation, your files and the sources you add.

Kayts Voice Mode

Talk with it and hear the answers in a natural voice, in every plan.

Benchmarks

How Kayts Siran scores on public tests, as published by the company that makes the model.

Terminal-Bench 4.0Working in a terminal, harder tasks 42.3%
DeepSWE v1.1Long software tasks in real open-source projects 77.0%
AutomationBench v1.0.6Business automations, run by Zapier 60.5%
Humanity's Last ExamExpert questions, without tools 42.6%
Agents' Last ExamLong agent tasks across many steps and tools 35.4%
Chartography, with toolsReading and making charts, with tools 83.0%

Scores published by the company that makes the model behind Kayts Siran, from its own tests at the highest reasoning effort; the software, terminal and automation tests ran in an agent harness, Humanity's Last Exam without tools and Chartography with tools. Which company that is, and the published source, is in the Privacy Policy. Benchmarks and their versions differ between models, so compare only the same benchmark and version. Checked 21 October 2026.

Best for

  • Detailed analysis and structured reports
  • Code: writing, explaining and fixing
  • Multi-step problems that need care

Good to know

Kayts Siran reads text, files and images. It comes with the Pro and Max plans.

Our models carry Armenian names: Kayts (կայծ) means spark. Which companies run them is listed in the Privacy Policy.

The other models

Kayts Mihr Fast and free: everyday questions, photos and files Reads images · 262K context In every plan Learn more → Kayts Anahit Smarter: longer writing and careful reasoning Reads images · 262K context From Plus Learn more → Kayts Nareia The long view: a million tokens for whole books Text only · 1M context From Pro Learn more → Kayts Monte Most powerful, for the hardest problems Reads images · 1M context From Max Learn more →