OpenAI compatible API · Attested · Public status
DeepSeek: DeepSeek V4 Flash 0731 vs OpenAI: gpt-oss-120b
Compare DeepSeek: DeepSeek V4 Flash 0731 and OpenAI: gpt-oss-120b by providers, context, price, and TrustedRouter route support.
Onebase URL to migrate
100sof models and routes
0prompt or output logs. Always.
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
OpenAI: gpt-oss-120b has the lower cheapest prompt+completion route on TrustedRouter. OpenAI: gpt-oss-120b has more provider fallback routes, while DeepSeek: DeepSeek V4 Flash 0731 has the larger context window. Current TrustedRouter probes show OpenAI: gpt-oss-120b with the lower p50 TTFT.
$0.2835/1MDeepSeek: DeepSeek V4 Flash 0731 cheapest route
$0.21735/1MOpenAI: gpt-oss-120b cheapest route
1619 msDeepSeek: DeepSeek V4 Flash 0731 measured p50 TTFT
697 msOpenAI: gpt-oss-120b measured p50 TTFT
DeepSeek: DeepSeek V4 Flash 0731OpenAI: gpt-oss-120b
Model id
deepseek/deepseek-v4-flash-0731openai/gpt-oss-120b
PublisherDeepSeekOpenAI
Context1,048,576 tokens131,072 tokens
Provider routes1424
Cheapest route$0.2835/1M$0.21735/1M
Privacy postureprovider posture varieshas provider E2EE route
Modes
chat
chat
DeepSeek: DeepSeek V4 Flash 0731 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="deepseek/deepseek-v4-flash-0731",
messages=messages,
)