The tiered architecture replaces a legacy single-tier Firecracker VM approach with three execution tiers mapped to subscription plans so that execution environments align with customer plan levels.

Supporting contexts

Quoteverbatim

The tiered architecture replaces a legacy single-tier Firecracker VM approach with three execution tiers mapped to subscription plans.

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Quoteverbatim

## 3. Code Interpreter — Tiered Architecture (pyrana-code-interpreter-tiered)

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Quoteverbatim

### Three-Tier Execution Model

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Effective from: 7/16/2026, 11:31:04 PM