Qwen 3.7 Plus vs GLM 5.3

Practical read: GLM 5.3 costs less. One API key runs both.

No card required. Start with 1 million free tokens.

Side by side:

Qwen 3.7 Plus compared with Z.ai: GLM 5.3
Attribute	Qwen 3.7 Plus `qwen/qwen-3-7-plus`	GLM 5.3 `z-ai/glm-5.3`
Price, 1M in + out	$2.64 Venice, cheapest route	$2.11 Pearl Research Labs, cheapest route
Best for		Low cost
Input / output, 1M	$0.53 / $2.11	$0.53 / $1.58
Cached input	$0.05275/1M	$0.03165/1M to $0.96005/1M
Context window	1M 1,000,000 tokens	1.05M 1,048,576 tokens
First token, p50	Measuring	0.83 s via FriendliAI
Throughput	Measuring	210 tok/s via Thinking Machines Lab
AI IQ	Unrated	IQ 124 #30 on AI IQ
Provider routes	1	33 with failover
Privacy	Varies by provider	Confidential E2EE and zero retention route
Recent route uptime range	not enough data	100.00%
Publisher	Alibaba Cloud Model Studio	Z.AI
Modes	chat	chat
More detail	Overview	Overview Pricing Providers

Price adds one million input and one million output tokens on the cheapest route. Prices and speed change: see the monthly reports and run a small eval before you choose a default.

Test both with your agent

Paste this into Claude Code, Cursor or any coding agent.

Compare Qwen 3.7 Plus and GLM 5.3 in this project through TrustedRouter.

1. Read https://trustedrouter.com/docs/llms.txt
2. Point the OpenAI-compatible client at
   https://api.trustedrouter.com/v1 and read the key from
   TRUSTEDROUTER_API_KEY.
3. Run our eval prompts on qwen/qwen-3-7-plus, then on z-ai/glm-5.3.
4. Show me cost, latency and quality side by side before changing the default.

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.trustedrouter.com/v1",
    api_key=os.environ["TRUSTEDROUTER_API_KEY"],
)
for model in ("qwen/qwen-3-7-plus", "z-ai/glm-5.3"):
    response = client.chat.completions.create(
        model=model,
        messages=[{"role": "user", "content": "What is the capital of France?"}],
    )
    print(model, response.choices[0].message.content)

for model in qwen/qwen-3-7-plus z-ai/glm-5.3; do
  curl https://api.trustedrouter.com/v1/chat/completions \
    -H "Authorization: Bearer $TRUSTEDROUTER_API_KEY" \
    -H "Content-Type: application/json" \
    -d "{\"model\": \"$model\", \"messages\": [{\"role\": \"user\", \"content\": \"What is the capital of France?\"}]}"
done

Your agent will need an API key.

Questions

Which should I use, Qwen 3.7 Plus or Z.ai: GLM 5.3?

Z.ai: GLM 5.3 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 Qwen 3.7 Plus or Z.ai: GLM 5.3 cheaper?

The current cheapest TrustedRouter route is $2.6375/1M for Qwen 3.7 Plus and $2.11/1M for Z.ai: GLM 5.3. The comparison uses current catalog prices and updates as provider pricing changes.

Is Qwen 3.7 Plus or Z.ai: GLM 5.3 faster?

Current measured p50 time to first token is not enough data for Qwen 3.7 Plus and 826 ms for Z.ai: GLM 5.3. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Qwen 3.7 Plus and Z.ai: GLM 5.3 with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between qwen/qwen-3-7-plus and z-ai/glm-5.3. This makes side-by-side evals possible without maintaining two provider integrations.

More comparisons

All comparisons

Try Qwen 3.7 Plus and GLM 5.3 with one key.

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.

No card required. Start with 1 million free tokens.