Use case

Content generation

Product descriptions, summaries, translations and newsletters, generated in batches of hundreds or thousands. The work is mostly about throughput, consistency with your style guide and a predictable bill.

The problem

Writing 5,000 product descriptions by hand takes weeks; generating them with the most capable model is fast but expensive, and fanning out thousands of requests at once trips rate limits. You also need the output to sound like your brand, not like a generic model.

How it works with NeuronGate

  1. 01

    Source rows

    Product data, articles, strings

  2. 02

    Draft pass

    Cheap model, style guide in the prompt

  3. 03

    Checks

    Length, banned words, required facts

  4. 04

    Edit pass

    Stronger model for drafts that failed

  5. 05

    Publish

    Or a human review queue

A two-pass batch: a cheap model drafts, a stronger one edits only what needs it

Every pass uses the same endpoint and key, so switching the draft model is a one-line change and you can compare two models on the same rows before committing to one.

Choosing models

Model roles in content generation
RoleGood fitWhyTrade-off
Drafts at volumedeepseek/deepseek-v4-flashLow price per token for thousands of rowsNeeds a clear style guide and checks
Editing and brand voice~anthropic/claude-sonnet-latestStrong writing quality and instruction-followingReserve it for drafts that need it
Translation~openai/gpt-latestBroad language coverageHave native speakers spot-check new languages
Summaries~google/gemini-flash-latestFast, and the large context fits long source textsCheck summaries keep key numbers intact

Current prices per million tokens are in the model catalog.

Example: a batch with bounded concurrency

Run requests in parallel, but only a fixed number at a time. It keeps throughput high without a burst of thousands of simultaneous requests, and a failure on one row doesn't stop the batch.

import asyncio, os
from openai import AsyncOpenAI

client = AsyncOpenAI(
    base_url="https://neurongate.net/v1",
    api_key=os.environ["NEURONGATE_API_KEY"],
)
STYLE = "Write in second person, under 80 words, no superlatives."
limit = asyncio.Semaphore(8)  # at most 8 requests in flight

async def describe(product: dict) -> str | None:
    async with limit:
        try:
            reply = await client.chat.completions.create(
                model="deepseek/deepseek-v4-flash",
                max_tokens=200,
                messages=[
                    {"role": "system", "content": STYLE},
                    {"role": "user", "content": f"Product: {product}"},
                ],
            )
            return reply.choices[0].message.content
        except Exception as err:
            print("failed", product["sku"], err)
            return None  # retry these later instead of failing the batch

async def main(products: list[dict]):
    return await asyncio.gather(*(describe(p) for p in products))

Put the style guide in the system prompt

A short, concrete guide (length, person, banned phrases, two example outputs) does more for consistency than a bigger model. Keep it identical across the batch.

Start with 50 rows

Run a small slice first, read every output, and check the cost in your logs. Multiply up before you launch the full batch, and set the key's cap from that estimate.

Cost control

Set max_tokens on every request; it is the simplest bound on what a batch can cost. A balance can't be overdrawn: if it runs out mid-batch, the remaining requests are refused, so top up before large runs.

  1. 1

    Give the workload its own key

    Create a key just for content batches under API keys. Its usage then shows up separately in the logs, and revoking it touches nothing else.
  2. 2

    Set a monthly spend cap

    Once the key has spent its cap for the month, its requests are refused until the next month or until you raise the cap. Size it from a week of real traffic, not a guess.
  3. 3

    Allowlist the models it may call

    Restrict the key to the models this workload actually uses, for example deepseek/deepseek-v4-flash and ~anthropic/claude-sonnet-latest. A typo or a prompt-injected model switch then fails instead of quietly running on a pricier model.
  4. 4

    Watch the logs

    Filter the request log by this key to see tokens, cost and latency per call. Export CSV for a monthly cost-per-workload report.

FAQ

How do I estimate the cost of a batch?

Run 50 representative rows, read the cost of those requests in your logs or CSV export, and scale by the number of rows. Model prices per million input and output tokens are listed in the catalog.

What happens if my balance runs out mid-batch?

Requests are refused rather than overdrawing the balance, so the batch stops spending. Rows that failed can be retried after you top up.

Can I use different models for different languages?

Yes. The model is just a field in each request, so you can route each language or content type to whichever model performs best on it.