OpenAI compatible API · Attested · Public status

DeepSeek: DeepSeek V4 Flash 0731 vs GPT 5.6 Terra

DeepSeek V4 Flash 0731 vs GPT 5.6 Terra: 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

DeepSeek V4 Flash 0731 has the lower published input-plus-output rate and more Credits provider routes. GPT 5.6 Terra has the larger context window. There is not enough recent probe data to compare speed.

$0.142425/1MDeepSeek: DeepSeek V4 Flash 0731 cheapest route

$14.77/1MGPT 5.6 Terra cheapest route

1253 msDeepSeek: DeepSeek V4 Flash 0731 fastest measured p50 TTFT via telnyx

not enough dataGPT 5.6 Terra 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.

DeepSeek: DeepSeek V4 Flash 0731GPT 5.6 Terra

Model iddeepseek/deepseek-v4-flash-0731openai/gpt-5.6-terra-az

Publisher DeepSeek OpenAI

AI IQ — —

Context1,048,576 tokens1,050,000 tokens

Credits provider routes241

Cheapest route$0.142425/1M$14.77/1M

Cached input$0.01/1M to $0.101559/1M$0.211/1M

Privacy posturehas confidential-compute routeprovider posture varies

Fastest measured p50 TTFT1253 ms via telnyxnot enough data

Highest measured throughputnot enough datanot enough data

Recent route uptime range0.00% to 100.00%not enough data

Modes chat chat

DeepSeek: DeepSeek V4 Flash 0731 routes

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

GPT 5.6 Terra 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="deepseek/deepseek-v4-flash-0731",
    messages=messages,
)

Questions

Which should I use, DeepSeek: DeepSeek V4 Flash 0731 or GPT 5.6 Terra?

Is DeepSeek: DeepSeek V4 Flash 0731 or GPT 5.6 Terra cheaper?

The current cheapest TrustedRouter route is $0.142425/1M for DeepSeek: DeepSeek V4 Flash 0731 and $14.77/1M for GPT 5.6 Terra. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4 Flash 0731 or GPT 5.6 Terra faster?

Current measured p50 time to first token is 1253 ms for DeepSeek: DeepSeek V4 Flash 0731 and not enough data for GPT 5.6 Terra. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek: DeepSeek V4 Flash 0731 and GPT 5.6 Terra 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-flash-0731 and openai/gpt-5.6-terra-az. This makes side-by-side evals possible without maintaining two provider integrations.