Simple, transparent pricing

ContextStellar's free tools require no signup. Upgrade to Pro for AI Lingo unlimited and the full course.

Free

$0/forever

Everything you need to get started with context engineering.

✓Context Engineering Editor (unlimited)
✓Token Cost Calculator
✓Complete Context Engineering Guide
✓Interactive Course (preview)
✓All analysis runs locally — no data sent to servers
✓No signup required

Most popular

Pro

$12/per month

For AI engineers who need the full context engineering toolkit.

✓Everything in Free
✓AI Lingo transformations (unlimited)
✓Full interactive course access (30+ lessons)
✓Export optimized prompts
✓Saved prompt history
✓Batch prompt processing
✓Priority support

Enterprise

Custom/contact sales

For teams running LLM workloads at scale.

✓Everything in Pro
✓Team workspace & collaboration
✓Admin dashboard & usage analytics
✓Custom integrations
✓SSO / SAML
✓SLA & dedicated support
✓Volume discounts

All plans include free access to the context engineering editor, calculator, and guide.

Try the free editor — no signup needed →