OpenAI compatible API. Attested gateway. Public status.
Z.ai: GLM 5 vs GLM 5.2 Fast on Fireworks
Compare Z.ai: GLM 5 and GLM 5.2 Fast on Fireworks by providers, context, price, and TrustedRouter route support.
1 URLbase_url migration
100smodels and routes
0prompt logs by default
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 5 has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5 has more provider fallback routes, while GLM 5.2 Fast on Fireworks has the larger context window. Current TrustedRouter probes show Z.ai: GLM 5 with the lower p50 TTFT.
$2.948/1MZ.ai: GLM 5 cheapest route
$12.76/1MGLM 5.2 Fast on Fireworks cheapest route
2949 msZ.ai: GLM 5 measured p50 TTFT
5021 msGLM 5.2 Fast on Fireworks measured p50 TTFT
Z.ai: GLM 5GLM 5.2 Fast on Fireworks
Model id
z-ai/glm-5z-ai/glm-5.2-fast
PublisherZ.AIZ.AI
Context204,800 tokens1,048,576 tokens
Provider routes194
Cheapest route$2.948/1M$12.76/1M
Privacy posturehas provider E2EE routeprovider posture varies
Modes
chat
chat
Z.ai: GLM 5 routes
- Overview19 endpoints
- PricingPrompt and completion rates
- BenchmarksTrustedRouter and external sources
- ProvidersAll serving providers
GLM 5.2 Fast on Fireworks routes
- Overview4 endpoints
- PricingPrompt and completion rates
- BenchmarksTrustedRouter and external sources
- ProvidersAll serving providers
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="z-ai/glm-5",
messages=messages,
)