OpenAI compatible API · Attested · Public status
OpenAI: GPT-4o vs Z.ai: GLM 4.6
Compare OpenAI: GPT-4o and Z.ai: GLM 4.6 by providers, context, price, and TrustedRouter route support.
Onebase URL to migrate
100sof models and routes
0prompt or output logs. Always.
Compare routesProviders, price, context, and policy posture in one view.
Use auto when uptime mattersKeep a primary model and let fallback handle provider failures.
Same API shapeUse the OpenAI client and set the model you want.
Practical read
Z.ai: GLM 4.6 has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 4.6 has more provider fallback routes, while Z.ai: GLM 4.6 has the larger context window. Current TrustedRouter probes show OpenAI: GPT-4o with the lower p50 TTFT.
$13.125/1MOpenAI: GPT-4o cheapest route
$2.289/1MZ.ai: GLM 4.6 cheapest route
967 msOpenAI: GPT-4o measured p50 TTFT
1120 msZ.ai: GLM 4.6 measured p50 TTFT
OpenAI: GPT-4oZ.ai: GLM 4.6
Model id
openai/gpt-4oz-ai/glm-4.6
PublisherOpenAIZ.AI
Context128,000 tokens204,800 tokens
Provider routes57
Cheapest route$13.125/1M$2.289/1M
Privacy posturehas ZDR routehas ZDR route
Modes
chat
chat
OpenAI: GPT-4o routes
Production choice
Pick a default model. Keep fallback enabled.
TrustedRouter is useful when you know the model you want, but still need provider rollover, budget limits, usage records, and a prompt path you can verify.
OpenAI clientPython
client = OpenAI(
base_url="https://api.trustedrouter.com/v1",
api_key="sk-tr-v1-..."
)
response = client.chat.completions.create(
model="openai/gpt-4o",
messages=messages,
)