Less than your weekly coffee.
Pick a plan when the trial ends. Annual saves 20%. 90-day money-back if your audience doesn't grow.
- ✓1 vertical (X or Newsletter)
- ✓500 agent steps / month
- ✓All core Skills
- ✓Email support
- ✓2 verticals (X + Newsletter)
- ✓2,000 agent steps / month
- ✓All Skills + weekly performance reports
- ✓Priority support
- ✓Everything in Pro
- ✓Up to 5 social handles
- ✓API access (read-only)
- ✓Founder office hours (30m / quarter)
Frequently asked
Is there a free trial?
7 days, full Solo features, no credit card required. We only ask for billing details if you choose to continue.
What if I don't grow?
If you ship 10+ publishable assets in your first 90 days and have zero audience growth, we refund 100%. We want this to actually work for you.
Can I switch verticals later?
Yes — Solo lets you focus on one (X or Newsletter). Pro unlocks both. Switching is one click in Settings.
Will my outputs sound like me?
Voice calibration after onboarding learns from your last 3-30 posts. The more we see, the closer the match.
Will SideBrain auto-post for me?
No. We draft, you review, you ship. Auto-posting kills trust with your audience and platforms — that's a deliberate product decision.
What models do you use?
Tier-based: Claude Sonnet 4 / Haiku, GPT-4o-mini, and DeepSeek V3 — picked per Skill for cost + quality. No model lock-in for users.
Do you train on my content?
Never. Your content stays yours — contractual non-training with Anthropic / OpenAI / DeepSeek.