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Synth AI offers four subscription plans to fit your needs.

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Plan Comparison

FeatureFreeProTeamBYOK
Monthly Rollout Credits$0$10$100$0 (uses your keys)
Overdraft Limit$0$200$200$0
Unlimited Non-Rollout UsageNoYesYesNo
Team FeaturesNoNoYesNo
Bring Your Own KeysNoYesYesYes

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Pro

For individual developers and small projects.
  • $10/month in rollout credits included
  • Up to $200 overdraft when you need extra capacity
  • Unlimited non-rollout usage (evals, graphs inference, etc.)
  • Bring your own API keys for rollouts
  • Priority support

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Team

For teams building production applications.
  • $100/month in rollout credits included
  • Up to $200 overdraft when you need extra capacity
  • Unlimited non-rollout usage (evals, graphs inference, etc.)
  • Team features: shared workspaces, collaboration tools
  • Bring your own API keys for rollouts
  • Priority support

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BYOK (Bring Your Own Keys)

Use your own LLM provider API keys for all operations.
  • No rollout credits (uses your keys directly)
  • Full flexibility with your preferred providers
  • You pay your provider directly for LLM usage
  • Synth AI charges only for platform features

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Usage-Based Pricing

Beyond the included credits, usage is billed based on:
  • Rollout tokens: Policy model tokens consumed during training
  • GPU compute: For fine-tuning workloads
  • Inference: Graph inference calls (10% margin on token costs)

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FAQ

Rollout credits cover the cost of running your policy model during prompt optimization and graph training. Credits refresh monthly and unused credits do not roll over.
Non-rollout usage includes: running evals, graph inference (completions API), and other platform features that don’t involve training rollouts.
Yes. Plan changes take effect immediately. When upgrading, you’ll be prorated for the remainder of the billing period.
Jobs will be paused until you add credits or the next billing cycle begins. You’ll receive email notifications as you approach your limit.