Northwood SystemsTestrig · public fixture demo
PROFILEPublic demo · synthetic fixture transport
Inspect states

Typed fixtures only. No provider or runtime API calls.

01

LIVE PAIRED REPLAY · CONFIGURE

Choose the exact deployment pair

Catalog identity is server-authored before creation. Selectors submit stable IDs only.

3 configured deployment snapshots
  • AvailableClaude Opus 4.8claude-opus-4-8
  • AvailableGPT-5.6gpt-5.6
  • UnavailableConfigured deployment awaiting operator authorizationunavailable-fixture-modelRequired server-side authorization is not configured for this deployment.
BaselineAvailable

Claude Opus 4.8

claude-opus-4-8
Operator
Northwood Systems
Deployment
managed
Protocol
anthropic messages
Mode
Paired live baseline
CandidateAvailable

GPT-5.6

gpt-5.6
Operator
Northwood Systems
Deployment
managed
Protocol
openai responses
Mode
Drop-in compatibility
Workload
support-holdout-v2
Dataset role
holdout
Cases
3
Workload slices
refunds · routing
Evaluation lane
Drop-in compatibility
Comparison policy
Migration review
Retention
1 day

Unavailable targets remain visible with their exact server reason. No provider request occurs during configuration.