Your agents deserve an open tab.

Cirthan is an AI inference API with flat monthly pricing. Drop in any OpenAI-compatible client — your prompts are never stored.

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Always-on AI inference
  • OpenAI-compatible
  • Up to 200K context
  • Vision & audio
  • Hosted in the USA
  • Zero data retention

How it works

1

Get your API key

Sign up, pick a plan, and generate a key from your dashboard.

2

Point your client

Set your base URL to api.cirthan.com. Works with any OpenAI-compatible SDK or tool.

client = OpenAI(
    base_url="https://api.cirthan.com/v1",
    api_key="sk-..."
)
3

Build

Call chat completions, analyze images, transcribe audio. One flat monthly bill.

The models

Breglan

Fast and versatile. Vision, reasoning, 200K context. The workhorse for most tasks.

Saelorn

Smarter, deeper reasoning. More deliberate but thinks harder. Best when accuracy matters more than speed.

All plans include audio transcription.

What you can build

Coding agents

Point Pi, OpenCode, or any OpenAI-compatible coding agent at Cirthan. 200K context fits entire codebases. Iterate freely.

Always-on assistants

Run OpenClaw or similar autonomous agents on WhatsApp, Discord, or Slack. Always-on without usage spikes eating your budget.

Document & image processing

Summarize contracts, extract data from PDFs, or analyze screenshots with vision-capable models. Process in bulk — vision models handle PDFs, screenshots, and scanned documents.

Audio pipelines

Transcribe meetings, podcasts, or voice notes. Chain transcripts into language models for summaries and action items.

What makes Cirthan different

Simple vs complex billing
The status quo
—Per-token billing that makes cost unpredictable
—Provider SDKs that lock you into one vendor
—Usage data feeding someone else's training pipeline
With Cirthan
—Flat monthly rate — no per-token metering
—Standard OpenAI API — swap one base URL
—Zero data retention. Your prompts are never stored. Ever.

Pricing

Simple plans. No surprises.

Starter

Background agents, batch tasks

$10/month
  • Breglan
  • 128K context
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Most Popular

Pro

The sweet spot for always-on agents

$20/mo, billed quarterly
  • Breglan + Saelorn
  • 200K context
  • 2x throughput
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Ultra

Priority speed for interactive workflows

$30/month
  • Breglan + Saelorn
  • 200K context
  • 4x throughput
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Fair use policy applies.

Invite-only access

Cirthan is invite-only

We are onboarding developers in small batches to keep quality high. Leave your email and we will send you an invite when a slot opens.

No spam. No mailing list. Just an invite.