OpenAI compatible API · Attested · Public status

Claude Opus 4.5 vs Z.ai: GLM 5.2

Claude Opus 4.5 vs Z.ai: GLM 5.2: compare current API pricing, context, provider routes, privacy, p50 latency, and OpenAI-compatible access.

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

Z.ai: GLM 5.2 has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 5.2 has more provider fallback routes, while Z.ai: GLM 5.2 has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

$31.5/1MClaude Opus 4.5 cheapest route

$2.289/1MZ.ai: GLM 5.2 cheapest route

not enough dataClaude Opus 4.5 fastest measured p50 TTFT

1210 msZ.ai: GLM 5.2 fastest measured p50 TTFT via digitalocean

Claude Opus 4.5Z.ai: GLM 5.2

Model idanthropic/claude-opus-4-5-20251101z-ai/glm-5.2

Publisher Anthropic Z.AI

AI IQ — IQ 120#16

Context200,000 tokens1,048,576 tokens

Provider routes147

Cheapest route$31.5/1M$2.289/1M

Privacy postureprovider posture varieshas provider E2EE route

Fastest measured p50 TTFTnot enough data1210 ms via digitalocean

Highest measured throughputnot enough data207 tok/s via wafer

Recent route uptime rangenot enough data0.00% to 100.00%

Modes chat messages chat

Claude Opus 4.5 routes

Overview1 endpoints

Z.ai: GLM 5.2 routes

Overview47 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

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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="anthropic/claude-opus-4-5-20251101",
    messages=messages,
)

Questions

Which should I use, Claude Opus 4.5 or Z.ai: GLM 5.2?

Is Claude Opus 4.5 or Z.ai: GLM 5.2 cheaper?

The current cheapest TrustedRouter route is $31.5/1M for Claude Opus 4.5 and $2.289/1M for Z.ai: GLM 5.2. The comparison uses current catalog prices and updates as provider pricing changes.

Is Claude Opus 4.5 or Z.ai: GLM 5.2 faster?

Current measured p50 time to first token is not enough data for Claude Opus 4.5 and 1210 ms for Z.ai: GLM 5.2. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Claude Opus 4.5 and Z.ai: GLM 5.2 with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between anthropic/claude-opus-4-5-20251101 and z-ai/glm-5.2. This makes side-by-side evals possible without maintaining two provider integrations.