Choose and switch models

Choose a llm.sg model based on the task you want to complete. Model IDs identify the model requested by your application; capabilities and optional parameters can differ between models.

Discover available models

Use the platform’s model directory, if provided, or request the model list:

curl --fail-with-body --silent --show-error \
  'https://api.llm.sg/v1/models' \
  -H "Authorization: Bearer ${LLM_SG_API_KEY}"

Preserve the complete model ID, including prefixes, versions, and suffixes. Availability may depend on your account and key permissions. The authenticated response format still needs validation.

Compare models

Task	What to check
Chat and rewriting	Answer quality, response time, input and output prices
Coding and reasoning	Task performance, reasoning options, latency and cost
Long documents	Context capacity, output limits and long-input pricing
Image understanding	Image input support, accepted formats and limits
Agents and tools	Tool definitions and tool-result message support
Data extraction	JSON or structured output support and constraints

Evaluate a small set of representative inputs before increasing traffic. Recheck quality, latency, and cost after changing a model.

Switch a model

Change LLM_SG_MODEL in the quickstart to another available model ID. Begin with a minimal text request. If your application uses images, tools, reasoning, or structured output, verify those capabilities separately. A shared endpoint does not guarantee identical parameter support.

Router features

The platform’s aggregation role does not establish support for automatic model selection, user-selected providers, failover, or configurable routing policies. Those features require product confirmation. This draft does not prescribe provider or fallback parameters.

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Choose and switch models

Discover available models

Compare models

Switch a model

Router features