OpenAI compatible API · Attested · Public status

OpenAI: GPT-5.6 Terra vs OpenAI: gpt-oss-20b

Compare GPT-5.6 Terra and gpt-oss-20b across token pricing, context windows, provider availability, privacy options, route diversity, and measured performance.

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

OpenAI: gpt-oss-20b has the lower cheapest prompt+completion route on TrustedRouter. OpenAI: gpt-oss-20b has more provider fallback routes, while OpenAI: GPT-5.6 Terra has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

$14.7/1MOpenAI: GPT-5.6 Terra cheapest route

$0.1785/1MOpenAI: gpt-oss-20b cheapest route

not enough dataOpenAI: GPT-5.6 Terra measured p50 TTFT

1081 msOpenAI: gpt-oss-20b measured p50 TTFT

OpenAI: GPT-5.6 TerraOpenAI: gpt-oss-20b

Model idopenai/gpt-5.6-terraopenai/gpt-oss-20b

Publisher OpenAI OpenAI

AI IQ IQ 132#5 IQ 100#70

Context1,050,000 tokens131,072 tokens

Provider routes614

Cheapest route$14.7/1M$0.1785/1M

Privacy posturehas ZDR routehas ZDR route

Modes chat chat

OpenAI: GPT-5.6 Terra routes

Overview6 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

OpenAI: gpt-oss-20b routes

Overview14 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

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-terra",
    messages=messages,
)