Cost control

After traffic hits dxgate, Cost Control writes two ledgers: API USD and ChatGPT subscription credits. No invented FX. Unknown models are not priced.

See /ui → Cost Control. The middle pane is a usage flame tape (candles + cumulative mountain), or GET /debug/cost.

ChatGPT subscription (Codex)

Do not set a provider key. Codex stays on ChatGPT login; a profile sends requests to dxgate. Any usage is quoted.

Item	Value
Codex	~/.codex/config.toml
Start	codex --profile dxgate
DxgateService	spec.ai.provider.openai: {}, no credential

[model_providers.dxgate]
name = "dxgate"
base_url = "http://127.0.0.1:8080/v1"
wire_api = "chat"

[profiles.dxgate]
model = "gpt-5.6-sol"
model_provider = "dxgate"

API

A provider Secret injects the API key. Clients call the gateway /v1.

Item	Value
Secret	openai-secret, key Authorization
DxgateService	spec.ai.provider.openai plus credential
Client	curl http://gateway/v1/chat/completions

kubectl -n dubbo-system create secret generic openai-secret \
  --from-literal=Authorization="$OPENAI_API_KEY"

apiVersion: networking.dubbo.apache.org/v1alpha3
kind: DxgateService
metadata:
  name: openai
  namespace: dubbo-system
spec:
  ai:
    provider:
      openai: {}
      credential:
        name: openai-secret
        key: Authorization
    routes:
      /v1/chat/completions: COMPLETIONS

The rate card is GPT-5.6 Sol / Terra / Luna only. See LLM routing.