OpenAI compatible API · Attested · Public status

OpenAI: gpt-oss-120b vs Qwen 3.8 27B

gpt-oss-120b vs Qwen 3.8 27B: 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 Qwen 3.8 27B has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

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

$3.85075/1MQwen 3.8 27B cheapest route

596 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via cerebras

not enough dataQwen 3.8 27B fastest measured p50 TTFT

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.

OpenAI: gpt-oss-120bQwen 3.8 27B

Model idopenai/gpt-oss-120bqwen/qwen-3-8-27b

Publisher OpenAI Venice

AI IQ IQ 105#70 —

Context131,072 tokens262,144 tokens

Credits provider routes191

Cheapest route$0.211/1M$3.85075/1M

Cached input$0.015825/1M to $0.1055/1MNot published

Privacy posturehas provider E2EE routeprovider posture varies

Fastest measured p50 TTFT596 ms via cerebrasnot enough data

Highest measured throughputnot enough datanot enough data

Recent route uptime range0.00% to 100.00%not enough data

Modes chat chat

OpenAI: gpt-oss-120b routes

Overview19 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Qwen 3.8 27B routes

Overview1 Credits routes

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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="openai/gpt-oss-120b",
    messages=messages,
)

Questions

Which should I use, OpenAI: gpt-oss-120b or Qwen 3.8 27B?

Is OpenAI: gpt-oss-120b or Qwen 3.8 27B cheaper?

The current cheapest TrustedRouter route is $0.211/1M for OpenAI: gpt-oss-120b and $3.85075/1M for Qwen 3.8 27B. The comparison uses current catalog prices and updates as provider pricing changes.

Is OpenAI: gpt-oss-120b or Qwen 3.8 27B faster?

Current measured p50 time to first token is 596 ms for OpenAI: gpt-oss-120b and not enough data for Qwen 3.8 27B. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test OpenAI: gpt-oss-120b and Qwen 3.8 27B with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between openai/gpt-oss-120b and qwen/qwen-3-8-27b. This makes side-by-side evals possible without maintaining two provider integrations.