Models

Call a model by its ID: a1, a2, a3, or a4. The catalog below is today’s; GET /v1/models is always current, with prices.

ID	Input	Tools	Reasoning efforts	Context window	Max output
`a1`	text	yes	`none`, `low`, `medium`, `high`	1,048,576	131,072
`a2`	text, image	yes	`none`, `low`, `medium`, `high`	1,048,576	131,072
`a3`	text	yes	—	262,144	65,536
`a4`	text	no	—	131,072	16,384

The live catalog

curl https://api.antarah.dev/v1/models -H "Authorization: Bearer $ANTARA_API_KEY"

{
  "object": "list",
  "data": [{
    "id": "a1",
    "object": "model",
    "created": 1793750400,
    "owned_by": "antara",
    "display_name": "Antara A1",
    "context_window": 1048576,
    "max_output_tokens": 131072,
    "input_modalities": ["text"],
    "output_modalities": ["text"],
    "supports_tools": true,
    "supports_reasoning": true,
    "reasoning_efforts": ["none", "low", "medium", "high"],
    "pricing": { "input_per_mtok": "1.25", "cached_input_per_mtok": "0.20", "output_per_mtok": "2.50" },
    "deprecated": false,
    "sunset_at": null,
    "access": { "available": true, "locked": false, "required_checks": [], "missing_requirements": [] }
  }]
}

Field	Meaning
`input_modalities`	`image` means the model accepts images. Sending one to a text-only model gets `400 unsupported_modality`
`supports_tools`	Whether `tools` is accepted. If not, sending tools gets `400 unsupported_parameter`
`reasoning_efforts`	The values `reasoning_effort` accepts for this model. See Reasoning
`pricing`	USD per million tokens, as decimal strings. Cached input is input the model runtime served from its prompt cache
`deprecated`, `sunset_at`	A deprecated model still works until `sunset_at`, then answers `410 model_retired`. See Versioning
`access`	Whether your organization can call the model. A locked model answers `403 model_locked`

Responses always name the public model ("model": "a1"), never the runtime behind it.

/v1/models is cached for 60 seconds per project and sends an ETag, so polling it is cheap.

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The live catalog

​The live catalog

The live catalog