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Llama 3.3 70B vs Z.ai: GLM 5.3 Flash

Try both on us. Starter credit covers your first requests, then one key routes Llama 3.3 70B and GLM 5.3 Flash. Switch by changing the model name.

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

Monthly evidence

Z.ai: GLM 5.3 Flash has the lower published input-plus-output rate, more Credits provider routes and the larger context window. There is not enough recent probe data to compare speed.

$3.6925/1MLlama 3.3 70B cheapest route

$0.32705/1MZ.ai: GLM 5.3 Flash cheapest route

not enough dataLlama 3.3 70B fastest measured p50 TTFT

989 msZ.ai: GLM 5.3 Flash fastest measured p50 TTFT via baseten

The price comparison adds each route's rate for one million input tokens and one million output tokens; your cost depends on your input/output mix. Prices and live route measurements can change. Use the monthly reports when you need a stable evidence window, then run a small task-specific eval before choosing a production default.

Llama 3.3 70BZ.ai: GLM 5.3 Flash

Model idmeta-llama/llama-3.3-70bz-ai/glm-5.3-flash

Publisher Meta Z.AI

AI IQ — IQ 119#45

Context128,000 tokens1,048,576 tokens

Credits provider routes132

Cheapest route$3.6925/1M$0.32705/1M

Cached inputNot published$0.015825/1M to $0.068575/1M

Privacy postureprovider posture varieshas Confidential route (E2EE + ZDR)

Fastest measured p50 TTFTnot enough data989 ms via baseten

Highest measured throughputnot enough datanot enough data

Recent route uptime range100.00%0.00% to 100.00%

Modes chat chat

Llama 3.3 70B routes

Overview1 Credits routes

Z.ai: GLM 5.3 Flash routes

Overview32 Credits routes
PricingInput, cached input, and output rates
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="meta-llama/llama-3.3-70b",
    messages=messages,
)

Questions

Which should I use, Llama 3.3 70B or Z.ai: GLM 5.3 Flash?

Z.ai: GLM 5.3 Flash has the lower published input-plus-output rate, more Credits provider routes and the larger context window. There is not enough recent probe data to compare speed.

Is Llama 3.3 70B or Z.ai: GLM 5.3 Flash cheaper?

The current cheapest TrustedRouter route is $3.6925/1M for Llama 3.3 70B and $0.32705/1M for Z.ai: GLM 5.3 Flash. The comparison uses current catalog prices and updates as provider pricing changes.

Is Llama 3.3 70B or Z.ai: GLM 5.3 Flash faster?

Current measured p50 time to first token is not enough data for Llama 3.3 70B and 989 ms for Z.ai: GLM 5.3 Flash. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Llama 3.3 70B and Z.ai: GLM 5.3 Flash with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between meta-llama/llama-3.3-70b and z-ai/glm-5.3-flash. This makes side-by-side evals possible without maintaining two provider integrations.