chat text generation.md

Chat and Text Generation

Use Parasail to build chatbots, virtual assistants, content generators, and any application that involves conversational AI. Our API is fully OpenAI-compatible—point your existing OpenAI SDK at our base URL and start building.

Choose your deployment model

Need	Recommended product
Quick experimentation or low-volume production	Serverless—pay per token, no setup
Production with latency/cost control	Dedicated instances—private GPUs, auto-scaling
Large-scale offline processing (evals, data)	Batch—50% off, up to millions of prompts

Quickstart

Make your first chat completion call in under two minutes:

from openai import OpenAI

client = OpenAI(
    base_url="https://api.parasail.io/v1",
    api_key="<PARASAIL_API_KEY>"
)

response = client.chat.completions.create(
    model="parasail-deepseek-r1",
    messages=[{"role": "user", "content": "Explain quantum computing in one paragraph."}]
)

print(response.choices[0].message.content)

See the serverless quickstart for the full guide.

Relevant guides

Chat completions guide—messages, roles, system prompts, and chat templates
Model selection—find the best model for your use case
Structured output—force JSON-formatted responses
Tool/function calling—give the model tools to call

API reference

Chat completions API
Parameters—temperature, top_p, top_k, and more
Responses API—multi-turn agentic workflows with tool calling

Available models

Browse all available serverless models:

curl https://api.parasail.io/v1/models \
  -H "Authorization: Bearer $PARASAIL_API_KEY"