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DeepSeek: DeepSeek V4.1 Flash 1017 vs OpenAI: gpt-oss-120b

Try both on us. Starter credit covers your first requests, then one key routes DeepSeek V4.1 Flash 1017 and gpt-oss-120b. Switch by changing the model name.

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

DeepSeek V4.1 Flash 1017 has the lower published input-plus-output rate, the larger context window and the lower measured p50 time to first token. gpt-oss-120b has more Credits provider routes.

$0.1266/1MDeepSeek: DeepSeek V4.1 Flash 1017 cheapest route

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

618 msDeepSeek: DeepSeek V4.1 Flash 1017 fastest measured p50 TTFT via baseten

1033 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via cerebras

The price comparison adds each route's rate for one million input tokens and one million output tokens; your cost depends on your input/output mix. 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: DeepSeek V4.1 Flash 1017OpenAI: gpt-oss-120b

Model iddeepseek/deepseek-v4.1-flash-1017openai/gpt-oss-120b

Publisher DeepSeek OpenAI

AI IQ IQ 127#18 IQ 98#132

Context1,048,576 tokens131,072 tokens

Credits provider routes1224

Cheapest route$0.1266/1M$0.211/1M

Cached input$0.01/1M to $0.13715/1M$0.015825/1M to $0.1055/1M

Privacy posturehas Confidential route (E2EE + ZDR)has Confidential route (E2EE + ZDR)

Fastest measured p50 TTFT618 ms via baseten1033 ms via cerebras

Highest measured throughputnot enough data132 tok/s via amazon-bedrock

Recent route uptime range94.20% to 100.00%88.31% to 100.00%

Modes chat chat

DeepSeek: DeepSeek V4.1 Flash 1017 routes

Overview12 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

OpenAI: gpt-oss-120b routes

Overview24 Credits routes
PricingInput, cached input, and output 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-v4.1-flash-1017",
    messages=messages,
)

Questions

Which should I use, DeepSeek: DeepSeek V4.1 Flash 1017 or OpenAI: gpt-oss-120b?

DeepSeek V4.1 Flash 1017 has the lower published input-plus-output rate, the larger context window and the lower measured p50 time to first token. gpt-oss-120b has more Credits provider routes.

Is DeepSeek: DeepSeek V4.1 Flash 1017 or OpenAI: gpt-oss-120b cheaper?

The current cheapest TrustedRouter route is $0.1266/1M for DeepSeek: DeepSeek V4.1 Flash 1017 and $0.211/1M for OpenAI: gpt-oss-120b. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4.1 Flash 1017 or OpenAI: gpt-oss-120b faster?

Current measured p50 time to first token is 618 ms for DeepSeek: DeepSeek V4.1 Flash 1017 and 1033 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: DeepSeek V4.1 Flash 1017 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-v4.1-flash-1017 and openai/gpt-oss-120b. This makes side-by-side evals possible without maintaining two provider integrations.