OpenAI compatible API · Attested · Public status
Qwen: Qwen3.5 397B A17B vs DeepSeek: DeepSeek V3.1 Terminus
Compare Qwen: Qwen3.5 397B A17B and DeepSeek: DeepSeek V3.1 Terminus by providers, context, price, and TrustedRouter route support.
Onebase URL to migrate
100sof models and routes
Noneprompt logs by default
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
DeepSeek: DeepSeek V3.1 Terminus has the lower cheapest prompt+completion route on TrustedRouter. Qwen: Qwen3.5 397B A17B has more provider fallback routes, while Qwen: Qwen3.5 397B A17B has the larger context window. Current TrustedRouter probes show DeepSeek: DeepSeek V3.1 Terminus with the lower p50 TTFT.
$2.97675/1MQwen: Qwen3.5 397B A17B cheapest route
$1.281/1MDeepSeek: DeepSeek V3.1 Terminus cheapest route
3375 msQwen: Qwen3.5 397B A17B measured p50 TTFT
3278 msDeepSeek: DeepSeek V3.1 Terminus measured p50 TTFT
Qwen: Qwen3.5 397B A17BDeepSeek: DeepSeek V3.1 Terminus
Model id
qwen/qwen3.5-397b-a17bdeepseek/deepseek-v3.1-terminus
PublisherDeepInfraDeepSeek
AI IQ
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Context262,144 tokens163,840 tokens
Provider routes157
Cheapest route$2.97675/1M$1.281/1M
Privacy posturehas provider E2EE routeprovider posture varies
Modes
chat
chat
Qwen: Qwen3.5 397B A17B routes
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="qwen/qwen3.5-397b-a17b",
messages=messages,
)