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Model comparison

GLM-5.1 vs Llama 3.3 70B

GLM-5.1 (Z.ai) and Llama 3.3 70B (Meta) side by side: what each costs per million tokens through Rapid Router, how much context each takes, what each supports, and where independent benchmarks place them. Same API, same key; switching is a one-string change.

GLM-5.1Llama 3.3 70B
Input price per 1M$1.05$1.04
Output price per 1M$3.50$1.04
Context window200K tokens128K tokens
Max output131K tokens4K tokens
Input typestexttext
Capabilitiestools, JSON, reasoningtools
AuthorZ.aiMeta

What a month costs on each

WorkloadGLM-5.1Llama 3.3 70B
Chatbot month (15M in, 4M out)$29.75$19.76
RAG month (40M in, 3M out)$52.50$44.72
Coding month (60M in, 10M out)$98.00$72.80

On a typical 75/25 input-output mix, Llama 3.3 70B costs less (about 37% less than GLM-5.1). GLM-5.1 takes the longer prompt at 200K tokens. Try your own numbers in the cost calculator.

Call either one

curl https://rapidrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $RAPIDROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "z-ai/glm-5.1", "messages": [{"role": "user", "content": "Hello"}]}'

# the other one: change the model string
  -d '{"model": "meta-llama/llama-3.3-70b", ...}'

Common questions

Which is cheaper, GLM-5.1 or Llama 3.3 70B?

Llama 3.3 70B is cheaper on a typical mix of 75% input and 25% output tokens, by about 37%. Through Rapid Router both are billed at the provider list price per million tokens.

Which has the larger context window?

GLM-5.1, at 200K tokens. Llama 3.3 70B offers 128K tokens.

Can I switch between GLM-5.1 and Llama 3.3 70B without changing code?

Yes. Both are callable at https://rapidrouter.ai/api/v1 with the same OpenAI-compatible request; only the model string changes (z-ai/glm-5.1 or meta-llama/llama-3.3-70b).

How do I pay for GLM-5.1 or Llama 3.3 70B?

Top up a Rapid Router balance by card in US dollars, and both models debit that balance per request.

More GLM models: Z.ai API pricing · More Llama: Meta API pricing