deepseek-v4.1-flash-value vs GLM 5.3 Flash

Practical read: GLM 5.3 Flash costs about half as much. One API key runs both.

No card required. Start with 1 million free tokens.

Side by side:

deepseek-v4.1-flash-value compared with Z.ai: GLM 5.3 Flash
Attribute	deepseek-v4.1-flash-value `coralbricks/deepseek-v4.1-flash-value`	GLM 5.3 Flash `z-ai/glm-5.3-flash`
Price, 1M in + out	$0.61 CoralBricks, cheapest route	$0.26 Wafer, cheapest route
Best for		Low cost
Input / output, 1M	$0.01 / $0.60	$0.053 / $0.21
Cached input	$0.01/1M	$0.01266/1M to $0.079125/1M
Context window	1.05M 1,048,576 tokens	1.05M 1,048,576 tokens
AI IQ	Unrated	IQ 119 #50 on AI IQ
Provider routes	1	33 with failover
Privacy	Zero retention route	Confidential E2EE and zero retention route
Publisher	coralbricks	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 deepseek-v4.1-flash-value and GLM 5.3 Flash in this project through TrustedRouter.

1. Read https://trustedrouter.com/docs/llms.txt
2. Point the OpenAI-compatible client at
   https://api-azure.trustedrouter.com/v1 and read the key from
   TRUSTEDROUTER_API_KEY.
3. Run our eval prompts on coralbricks/deepseek-v4.1-flash-value, then on z-ai/glm-5.3-flash.
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-azure.trustedrouter.com/v1",
    api_key=os.environ["TRUSTEDROUTER_API_KEY"],
)
for model in ("coralbricks/deepseek-v4.1-flash-value", "z-ai/glm-5.3-flash"):
    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 coralbricks/deepseek-v4.1-flash-value z-ai/glm-5.3-flash; do
  curl https://api-azure.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, deepseek-v4.1-flash-value or Z.ai: GLM 5.3 Flash?

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

Is deepseek-v4.1-flash-value or Z.ai: GLM 5.3 Flash cheaper?

The current cheapest TrustedRouter route is $0.61135/1M for deepseek-v4.1-flash-value and $0.26375/1M for Z.ai: GLM 5.3 Flash. The comparison uses current catalog prices and updates as provider pricing changes.

Can I test deepseek-v4.1-flash-value 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 coralbricks/deepseek-v4.1-flash-value and z-ai/glm-5.3-flash. This makes side-by-side evals possible without maintaining two provider integrations.

More comparisons

All comparisons

Try deepseek-v4.1-flash-value and GLM 5.3 Flash 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.