OpenAI compatible API · Attested · Public status

DeepSeek V3.1 vs OpenAI: gpt-oss-120b

DeepSeek V3.1 vs gpt-oss-120b: compare current API pricing, context, provider routes, privacy, p50 latency, and OpenAI-compatible access.

Verify gateway

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

Monthly evidence

OpenAI: gpt-oss-120b has the lower cheapest prompt+completion route on TrustedRouter. OpenAI: gpt-oss-120b has more provider fallback routes, while DeepSeek V3.1 has the larger context window. Current TrustedRouter probes show OpenAI: gpt-oss-120b with the lower p50 TTFT.

$1.266/1MDeepSeek V3.1 cheapest route

$0.211/1MOpenAI: gpt-oss-120b cheapest route

1216 msDeepSeek V3.1 fastest measured p50 TTFT via sambanova

665 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via baseten

Prices and live route measurements can change. Use the monthly reports when you need a stable evidence window, then run a small task-specific eval before choosing a production default.

DeepSeek V3.1OpenAI: gpt-oss-120b

Model iddeepseek/deepseek-v3.1openai/gpt-oss-120b

Publisher DeepSeek OpenAI

AI IQ IQ 96#92 IQ 105#63

Context131,072 tokens131,072 tokens

Provider routes733

Cheapest route$1.266/1M$0.211/1M

Privacy postureprovider posture varieshas provider E2EE route

Fastest measured p50 TTFT1216 ms via sambanova665 ms via baseten

Highest measured throughputnot enough datanot enough data

Recent route uptime range50.00% to 100.00%100.00%

Modes chat chat

DeepSeek V3.1 routes

Overview7 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

OpenAI: gpt-oss-120b routes

Overview33 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

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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-v3.1",
    messages=messages,
)

Questions

Which should I use, DeepSeek V3.1 or OpenAI: gpt-oss-120b?

Is DeepSeek V3.1 or OpenAI: gpt-oss-120b cheaper?

The current cheapest TrustedRouter route is $1.266/1M for DeepSeek V3.1 and $0.211/1M for OpenAI: gpt-oss-120b. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek V3.1 or OpenAI: gpt-oss-120b faster?

Current measured p50 time to first token is 1216 ms for DeepSeek V3.1 and 665 ms for OpenAI: gpt-oss-120b. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek V3.1 and OpenAI: gpt-oss-120b with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between deepseek/deepseek-v3.1 and openai/gpt-oss-120b. This makes side-by-side evals possible without maintaining two provider integrations.