OpenAI compatible API · Attested · Public status

OpenAI: GPT-5.6 Sol vs OpenAI: gpt-oss-120b

GPT-5.6 Sol 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 OpenAI: GPT-5.6 Sol has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

$25.32/1MOpenAI: GPT-5.6 Sol cheapest route

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

not enough dataOpenAI: GPT-5.6 Sol fastest measured p50 TTFT

618 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.

OpenAI: GPT-5.6 SolOpenAI: gpt-oss-120b

Model idopenai/gpt-5.6-solopenai/gpt-oss-120b

Publisher OpenAI OpenAI

AI IQ IQ 136#4 IQ 105#69

Context1,050,000 tokens131,072 tokens

Credits provider routes218

Cheapest route$25.32/1M$0.211/1M

Cached input$0.422/1M to $0.844/1M$0.015825/1M to $0.1055/1M

Privacy posturehas ZDR routehas provider E2EE route

Fastest measured p50 TTFTnot enough data618 ms via baseten

Highest measured throughputnot enough datanot enough data

Recent route uptime range100.00%0.00% to 100.00%

Modes chat chat

OpenAI: GPT-5.6 Sol routes

Overview2 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

OpenAI: gpt-oss-120b routes

Overview18 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="openai/gpt-5.6-sol",
    messages=messages,
)

Questions

Which should I use, OpenAI: GPT-5.6 Sol or OpenAI: gpt-oss-120b?

Is OpenAI: GPT-5.6 Sol or OpenAI: gpt-oss-120b cheaper?

The current cheapest TrustedRouter route is $25.32/1M for OpenAI: GPT-5.6 Sol and $0.211/1M for OpenAI: gpt-oss-120b. The comparison uses current catalog prices and updates as provider pricing changes.

Is OpenAI: GPT-5.6 Sol or OpenAI: gpt-oss-120b faster?

Current measured p50 time to first token is not enough data for OpenAI: GPT-5.6 Sol and 618 ms for OpenAI: gpt-oss-120b. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test OpenAI: GPT-5.6 Sol 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 openai/gpt-5.6-sol and openai/gpt-oss-120b. This makes side-by-side evals possible without maintaining two provider integrations.