FAQ

Common questions and answers about using the Regolo API.

Overview

This page addresses frequently asked questions about API parameters, model limits, and troubleshooting common issues.

Questions

What is the maximum value for `max_tokens`?

The maximum value for max_tokens varies by model. Setting a value higher than the model's limit will automatically cause the request to fail.

curl -L -X POST 'https://api.regolo.ai/v1/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -d '{
    "messages": [
      {
        "role": "user",
        "content": "Write a long story"
      }
    ],
    "model": "qwen3.5-122b",
    "max_tokens": 120000
  }'

Cost Consideration

Higher max_tokens values increase latency and token usage. Set only what you need for your use case.

Can I generate multiple completions at once?

Yes, use the n parameter to generate multiple response variations in a single request.

curl -L -X POST 'https://api.regolo.ai/v1/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -d '{
    "messages": [
      {
        "role": "user",
        "content": "Suggest a name for a new API product"
      }
    ],
    "model": "qwen3.5-122b",
    "n": 3
  }'

The response will contain 3 different choices in the choices array.

How do I choose between creativity and accuracy?

Use the temperature parameter to control the balance:

Temperature	Use Case
0.0 - 0.3	Factual, accurate responses
0.4 - 0.7	Balanced (default)
0.8 - 1.0	Creative, varied outputs

# For factual answers
curl -L -X POST 'https://api.regolo.ai/v1/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -d '{
    "messages": [
      {
        "role": "user",
        "content": "What year did WW2 end?"
      }
    ],
    "model": "qwen3.5-122b",
    "temperature": 0.2
  }'

How do I reduce repetition in model outputs?

Use frequency_penalty to reduce token repetition and presence_penalty to encourage new topics.

# Reduce repetition
curl -L -X POST 'https://api.regolo.ai/v1/chat/completions' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -d '{
    "messages": [
      {
        "role": "user",
        "content": "List 10 different programming languages"
      }
    ],
    "model": "qwen3.5-122b",
    "frequency_penalty": 0.5,
    "presence_penalty": 0.4
  }'

Parameter	Range	Effect
frequency_penalty	-2.0 to 2.0	Reduces repeated tokens
presence_penalty	-2.0 to 2.0	Encourages new topics

FAQ