specification: FinOps Framework specificationVersion: '1.0' schema: https://www.finops.org/framework/ provider: Letta providerId: letta created: '2026-05-08' # Provenance stamped 2026-08-11: this artifact was written by the API Evangelist # bulk sweep dated 2026-05-08, not harvested from the provider. See roadmap#35. method: generated modified: '2026-05-22' reconciled: true tags: - AI - Agents - Memory - MemGPT - Stateful - FinOps - Cost Management - FOCUS description: >- FOCUS-aligned FinOps view of Letta. Letta Cloud combines a $20/month base with per-active-agent ($0.10/mo) and per-second tool execution ($0.00015/sec) usage components. Underlying LLM tokens are pass-through at provider cost. Self-hosted Letta removes Letta charges entirely; you pay only infra and LLM bills. notes: Active agent count is the dominant Letta-specific cost lever; LLM token cost typically dominates the total bill. sources: - https://docs.letta.com/guides/api/plans - https://www.letta.com/ - https://focus.finops.org/focus-specification/v1-3/ alignedWith: framework: FinOps Foundation Framework frameworkUrl: https://www.finops.org/framework/ dataSpec: FOCUS dataSpecVersion: '1.3' dataSpecUrl: https://focus.finops.org/focus-specification/v1-3/ publisherName: Letta serviceCategory: AI billingModel: pricingCategory: Subscription + Usage (Per-Agent + Per-Second + LLM Pass-Through) billingFrequency: Monthly billingCurrency: USD chargeCategories: - Purchase - Usage - Adjustment focusColumns: ServiceName: Letta Cloud ServiceCategory: AI ProviderName: Letta PublisherName: Letta InvoiceIssuerName: Letta BillingCurrency: USD ChargeCategory: Usage meters: - name: plan_fee description: Letta Cloud monthly base fee ($20/month on API Plan). unit: month aggregation: sum dimensions: - account - name: active_agents description: Active agent count, billed at $0.10/agent/month. unit: agent-month aggregation: max dimensions: - account - name: tool_execution_seconds description: Tool execution time at $0.00015/sec. unit: second aggregation: sum dimensions: - account - tool - name: llm_tokens description: Pass-through LLM token usage at provider cost. unit: token aggregation: sum dimensions: - account - model principles: - name: Visibility description: Track active agent count, tool execution time, and LLM token spend in Letta dashboard. - name: Allocation description: Tag agents to consuming product surfaces. - name: Optimization description: Archive idle agents to drop active agent count; switch to cheaper LLM models where possible; self-host for high-volume workloads. - name: Accountability description: Assign owners for plan fee, agent fleet, tool budget, and LLM provider contracts separately. maintainers: - FN: Kin Lane email: kin@apievangelist.com