deepseek-v4.1-flash-value vs Kimi K3.1 Pro
Practical read: deepseek-v4.1-flash-value costs under a tenth as much. Kimi K3.1 Pro starts answering sooner. One API key runs both.
No card required. Start with 1 million free tokens.
Side by side:
| Attribute | deepseek-v4.1-flash-value | Kimi K3.1 Pro |
|---|---|---|
| Price, 1M in + out | $0.61 CoralBricks, cheapest route | $8.86 Engy, cheapest route |
| Best for | Low cost | Speed |
| Input / output, 1M | $0.01 / $0.60 | $1.48 / $7.38 |
| Cached input | $0.01/1M | $0.1477/1M to $0.422/1M |
| Context window | 1.05M 1,048,576 tokens | 1.05M 1,048,576 tokens |
| First token, p50 | 1.7 s via CoralBricks | 0.59 s via Telnyx |
| AI IQ | Unrated | IQ 132 #14 on AI IQ |
| Provider routes | 1 | 15 with failover |
| Privacy | Zero retention route | Confidential E2EE and zero retention route |
| Recent route uptime range | 100.00% | 100.00% |
| Publisher | coralbricks | Kimi |
| Modes | chat | chat |
| More detail |
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 Kimi K3.1 Pro 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 coralbricks/deepseek-v4.1-flash-value, then on moonshotai/kimi-k3.1-pro.
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 ("coralbricks/deepseek-v4.1-flash-value", "moonshotai/kimi-k3.1-pro"):
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 moonshotai/kimi-k3.1-pro; 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
Questions
Which should I use, deepseek-v4.1-flash-value or MoonshotAI: Kimi K3.1 Pro?
deepseek-v4.1-flash-value has the lower published input-plus-output rate. MoonshotAI: Kimi K3.1 Pro has more Credits provider routes and the lower measured p50 time to first token. Their context windows are the same size.
Is deepseek-v4.1-flash-value or MoonshotAI: Kimi K3.1 Pro cheaper?
The current cheapest TrustedRouter route is $0.61135/1M for deepseek-v4.1-flash-value and $8.862/1M for MoonshotAI: Kimi K3.1 Pro. The comparison uses current catalog prices and updates as provider pricing changes.
Is deepseek-v4.1-flash-value or MoonshotAI: Kimi K3.1 Pro faster?
Current measured p50 time to first token is 1718 ms for deepseek-v4.1-flash-value and 594 ms for MoonshotAI: Kimi K3.1 Pro. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.
Can I test deepseek-v4.1-flash-value and MoonshotAI: Kimi K3.1 Pro 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 moonshotai/kimi-k3.1-pro. This makes side-by-side evals possible without maintaining two provider integrations.
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Try deepseek-v4.1-flash-value and Kimi K3.1 Pro 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.