OpenAI compatible API · Attested · Public status

OpenAI: gpt-oss-120b vs Voyage 3 Large

gpt-oss-120b vs Voyage 3 Large: 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

Voyage 3 Large has the lower cheapest prompt+completion route on TrustedRouter. OpenAI: gpt-oss-120b has more provider fallback routes, while OpenAI: gpt-oss-120b has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

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

$0.1899/1MVoyage 3 Large cheapest route

1035 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via cloudflare-workers-ai

not enough dataVoyage 3 Large 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-120bVoyage 3 Large

Model idopenai/gpt-oss-120bvoyage/voyage-3-large

Publisher OpenAI Voyage AI

AI IQ IQ 98#99 —

Context131,072 tokens32,000 tokens

Credits provider routes221

Cheapest route$0.211/1M$0.1899/1M

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

Privacy posturehas provider E2EE routehas ZDR route

Fastest measured p50 TTFT1035 ms via cloudflare-workers-ainot enough data

Highest measured throughput290 tok/s via cerebrasnot enough data

Recent route uptime range100.00%not enough data

Modes chat embeddings

OpenAI: gpt-oss-120b routes

Overview22 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Voyage 3 Large 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 Voyage 3 Large?

Is OpenAI: gpt-oss-120b or Voyage 3 Large cheaper?

The current cheapest TrustedRouter route is $0.211/1M for OpenAI: gpt-oss-120b and $0.1899/1M for Voyage 3 Large. The comparison uses current catalog prices and updates as provider pricing changes.

Is OpenAI: gpt-oss-120b or Voyage 3 Large faster?

Current measured p50 time to first token is 1035 ms for OpenAI: gpt-oss-120b and not enough data for Voyage 3 Large. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test OpenAI: gpt-oss-120b and Voyage 3 Large 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 voyage/voyage-3-large. This makes side-by-side evals possible without maintaining two provider integrations.