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OpenAI: gpt-oss-120b vs Qwen3.5 Flash 2026 02 23

Try both on us. Starter credit covers your first requests, then one key routes gpt-oss-120b and Qwen3.5 Flash 2026 02 23. 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

gpt-oss-120b has the lower published input-plus-output rate and more Credits provider routes. Qwen3.5 Flash 2026 02 23 has the larger context window. There is not enough recent probe data to compare speed.

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

$0.5275/1MQwen3.5 Flash 2026 02 23 cheapest route

901 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via privatemode

not enough dataQwen3.5 Flash 2026 02 23 fastest measured p50 TTFT

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.

OpenAI: gpt-oss-120bQwen3.5 Flash 2026 02 23

Model idopenai/gpt-oss-120bqwen/qwen3.5-flash-2026-02-23

Publisher OpenAI Alibaba Cloud Model Studio

AI IQ IQ 98#132 —

Context131,072 tokens1,048,576 tokens

Credits provider routes241

Cheapest route$0.211/1M$0.5275/1M

Cached input$0.015825/1M to $0.1055/1M$0.01055/1M

Privacy posturehas Confidential route (E2EE + ZDR)provider posture varies

Fastest measured p50 TTFT901 ms via privatemodenot enough data

Highest measured throughput101 tok/s via nscalenot enough data

Recent route uptime range88.16% to 100.00%not enough data

Modes chat chat

OpenAI: gpt-oss-120b routes

Overview24 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Qwen3.5 Flash 2026 02 23 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 Qwen3.5 Flash 2026 02 23?

Is OpenAI: gpt-oss-120b or Qwen3.5 Flash 2026 02 23 cheaper?

The current cheapest TrustedRouter route is $0.211/1M for OpenAI: gpt-oss-120b and $0.5275/1M for Qwen3.5 Flash 2026 02 23. The comparison uses current catalog prices and updates as provider pricing changes.

Is OpenAI: gpt-oss-120b or Qwen3.5 Flash 2026 02 23 faster?

Current measured p50 time to first token is 901 ms for OpenAI: gpt-oss-120b and not enough data for Qwen3.5 Flash 2026 02 23. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test OpenAI: gpt-oss-120b and Qwen3.5 Flash 2026 02 23 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/qwen3.5-flash-2026-02-23. This makes side-by-side evals possible without maintaining two provider integrations.