OpenAI compatible API · Attested · Public status

Meta: Llama 3.1 70B Instruct vs Z.ai: GLM 5.1

Compare Meta: Llama 3.1 70B Instruct and Z.ai: GLM 5.1 by providers, context, price, and TrustedRouter route support.

Verify gateway

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

Meta: Llama 3.1 70B Instruct has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5.1 has more provider fallback routes, while Z.ai: GLM 5.1 has the larger context window. Current TrustedRouter probes show Z.ai: GLM 5.1 with the lower p50 TTFT.

$0.84/1MMeta: Llama 3.1 70B Instruct cheapest route

$4.263/1MZ.ai: GLM 5.1 cheapest route

2561 msMeta: Llama 3.1 70B Instruct measured p50 TTFT

2053 msZ.ai: GLM 5.1 measured p50 TTFT

Meta: Llama 3.1 70B InstructZ.ai: GLM 5.1

Model idmeta-llama/llama-3.1-70b-instructz-ai/glm-5.1

PublisherCerebrasZ.AI

AI IQ — IQ 114#32

Context131,072 tokens204,800 tokens

Provider routes223

Cheapest route$0.84/1M$4.263/1M

Privacy postureprovider posture varieshas confidential-compute route

Modes chat chat

Meta: Llama 3.1 70B Instruct routes

Overview2 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

Z.ai: GLM 5.1 routes

Overview23 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="meta-llama/llama-3.1-70b-instruct",
    messages=messages,
)