Billing and usage
Slab5 combines a workspace plan, a simple credit balance for managed AI and embeddings, and generous fair-use limits for the API plane. Teams can build production applications without pricing every ordinary API request, while managed AI work remains visible and controlled.
How pricing works
- 1 credit equals $0.01 USD.
- Workflow execution, Slab5-managed AI, and embeddings consume credits according to the public rate card below.
- REST API requests, MCP tool calls, webhooks, business records, storage, and egress are included within each plan's fair-use limits.
- Workspace owners can review credit balance, credit lots, transactions, managed AI activity, vector usage, and request-level evidence in the console.
Plans
| Plan | Monthly price | Workspaces | Credits | Best for |
|---|---|---|---|---|
| Free | $0 | 1 | 2,000 monthly credits, expiring at period end | Evaluation and early production use. |
| Builder | $99/month | 2 | 10,000 monthly credits; up to 50,000 purchased credits | Builders operating production workflows and integrations. |
| Team | $299/month | 5 | 30,000 monthly credits; up to 150,000 purchased credits | Teams running daily operating workflows. |
| Business / Agency | $799/month | 20 | 80,000 monthly credits; up to 400,000 purchased credits | Multi-workspace operations and agencies. |
| Enterprise | Contract | Custom | Committed or custom usage | Larger organizations, security review, deployment services, and custom limits. |
Builder, Team, and Business / Agency require subscriptions. Enterprise combines contracted tiers with different minimum commitments, support terms, and deployment options.
All plans support unlimited users. BYOK remains available on every plan.
Existing subscriptions
When Slab5 moves an existing paid workspace to the current plan model, it preserves the active subscription and its current access period. The workspace receives the matching current Slab5 plan immediately; its subscription price changes only when an owner explicitly selects a new plan. This avoids duplicate subscriptions, surprise prorations, and avoidable interruption to a live workspace.
Credits
Slab5 keeps two credit classes in the workspace ledger:
- Expiring credits are the monthly credits included with Free, Builder, Team, and Business / Agency. They expire at the end of the billing cycle and do not roll over.
- Purchased credits come from top-ups and do not expire.
When a managed operation runs, Slab5 consumes expiring credits first, starting with the earliest expiry, then uses purchased credits. This gives customers the full benefit of included credits before touching a top-up balance.
Rate card
| Action | Credits | How it is counted |
|---|---|---|
| AgentGrid workflow run | 1 | Base charge per managed workflow run. |
| Standard managed AI model call | 1 | Per started 4,000-token window across input and output. |
| Premium managed AI model call | 6 | Per started 4,000-token window across input and output. |
| BYOK AI | 0 | Provider tokens are paid directly to the customer's provider. |
| Embeddings | 1 | Per 32,000 embedded input tokens. |
AgentGrid reserves credits immediately before each managed model call, then settles the actual token usage after completion. Workflow trace steps are not separately charged unless they make a provider call. A failed model call or workflow that pauses for human approval releases its unused reservation.
Standard managed AI responses are capped at 2,000 output tokens per call. This keeps the simple Standard credit rate predictable for customers.
Fair use
The headless platform plane is included, subject to monthly fair-use limits.
| Monthly account limit | Free | Builder | Team | Business / Agency | Enterprise |
|---|---|---|---|---|---|
| API requests | 100,000 | 100,000 | 1,000,000 | 5,000,000 | Custom |
| MCP tool calls | 25,000 | 10,000 | 100,000 | 500,000 | Custom |
| Active webhook endpoints | 1 | 3 | 25 | 100 | Custom |
| Webhook delivery attempts | 10,000 | 50,000 | 250,000 | 1,000,000 | Custom |
| Storage | 1 GB | 10 GB | 100 GB | 500 GB | Custom |
Webhook delivery limits apply to outbound attempts, including retry attempts. At 80% of a limit, Slab5 raises an in-product warning in the console. Email notifications are sent for credit and payment events — low credit, monthly charge cap reached, auto top-up failure, and payment failure — not for fair-use thresholds. At 100%, read traffic is rate-limited with a retry signal rather than hard-blocked, so live sites can degrade gracefully. Writes are soft-blocked with a structured response that explains the limit and the upgrade or contact path. Sustained overage can be flagged for manual review.
Managed AI and BYOK
AgentGrid supports two execution modes:
| Mode | Model access | Credit behavior |
|---|---|---|
| Slab5 managed AI | Choose Standard or Premium in AgentGrid Settings. | Uses the managed AI rate card. |
| Bring your own key (BYOK) | Use a workspace OpenAI or Anthropic key. | Slab5 records token telemetry but does not debit AI credits. |
Use Standard for routine workflow work. Use Premium only where the additional capability is worth the higher credit rate. Use BYOK when the workspace needs direct provider control or already has a provider agreement.
Usage visibility
The Billing screen shows the current plan, credit balance, expiring credit lots, and the fair-use limits that apply to the account. The Usage screen shows transactions, managed AI events, embedding events, and collection-level intelligence usage. AgentGrid run traces include the workflow outcome and usage evidence. Usage and Audit Log can be filtered by registered app when an app-associated API key is used, making it clear whether activity belongs to the workspace generally or to a specific integration.
Ordinary app-plane bookkeeping, safe summaries, deterministic BI planning, webhook delivery tracking, and collection lifecycle actions are shown as Included. They do not consume credits.
Partner and enterprise
Partner / Enterprise is for organizations that need custom capacity, committed usage, support terms, deployment services, security review, SSO, custom retention, or procurement support. Contact Slab5 for a contracted plan.