Spark
FREE
Start the dialectic. See if your ideas survive.
- 3 streams per month
- 3 forges per month
- Markdown export
- Vessel visualization (view)
- Intensity range 1-5
- Claude provider
- Unlimited document history
Flame
$12
/month
For serious thinkers. Unlimited forging, full exports.
- 25 streams per month
- Unlimited forges
- MD + HTML + LOG export
- Interactive vessel + themes
- Full intensity range 1-10
- Claude + Ollama providers
- Collections & folders
- Cross-stream synthesis
- Weekly challenge digest
Forge
$39
/month
Unlimited everything. Adaptive intensity. Priority access.
- Unlimited streams
- Unlimited forges
- All export formats
- Interactive vessel + themes
- Adaptive intensity (AI-driven)
- All providers + priority
- Collections & folders
- Cross-stream synthesis
- Weekly challenge digest
- Unlimited re-forges
14-day free trial · No credit card required · Cancel anytime
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