Exogram + OpenAI (GPT-4 / Assistants API)
“A stack, not competitors. Combine intelligence with execution governance.”
What OpenAI (GPT-4 / Assistants API) Does
- •OpenAI provides the intelligence layer — GPT-4, GPT-4o, o1, and the Assistants API.
- •Function calling lets agents invoke tools, but the call goes straight to your system with no validation layer.
- •Schema validation ensures correct parameter types, but does not validate whether the action itself is safe.
What Exogram Does
- ▸Exogram intercepts every tool call OpenAI generates and evaluates it through 8 deterministic policy rules in 0.07ms.
- ▸Schema enforcement, boundary control, loop protection, destructive action blocking, and data exfiltration prevention — all before execution.
- ▸Zero LLM inference in the decision path. Pure Python logic gates. Same input → same output → every time.
Key Differences
| Dimension | OpenAI | Exogram |
|---|---|---|
| Role in Stack | Intelligence (reasoning) | Governance (execution boundary) |
| Tool Call Validation | Schema format only | Intent + schema + policy |
The Verdict
OpenAI generates the intent. Exogram deterministically gates the resulting tool call. You need both to deploy.
Interception Latency Benchmark
Unlike standard LLM-based guardrails that invoke external APIs on every single tool execution, Exogram compiles policies to execute in-memory inside the client runtime.
Is OpenAI (GPT 4 / Assistants API) vulnerable to execution drift?
Run a static analysis on your LLM pipeline below.
Frequently Asked Questions
Does Exogram replace OpenAI?
No. Exogram is not a model — it is the execution boundary between OpenAI's output and your production systems. You use both.
Can I use Exogram with the OpenAI Assistants API?
Yes. Exogram sits between the Assistants API tool calls and your tool implementations. Every function call passes through Exogram's policy engine before execution.
Why isn't OpenAI schema validation enough?
Schema validation checks format (correct parameter types). Exogram validates intent — whether the action is admissible given your system's current state. A correctly formatted "DELETE FROM users" is still destructive.