{
	"model_id": "google/gemini-3.1-flash-tts",
	"provider_id": "google",
	"name": "Gemini 3.1 Flash TTS",
	"description": "",
	"task": "Text-to-Speech",
	"tags": [],
	"context_length": null,
	"max_output_tokens": null,
	"schema_version": "1.0.0",
	"pricing": {
		"Input audio tokens (per 1M)": 3,
		"Input text tokens (per 1M)": 0.75,
		"output_audio_tokens": 12,
		"output_text_tokens": 4.5
	},
	"examples": [
		{
			"name": "Simple Text-to-Speech",
			"description": "Convert text to speech with default voice",
			"input": {
				"text": "Hello, welcome to Cloudflare AI Gateway!"
			},
			"output": {
				"audio": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__gemini-3.1-flash-tts/simple-text-to-speech.wav"
			},
			"raw_response": {
				"audio": "data:audio/l16;base64,...",
				"gatewayMetadata": {
					"keySource": "Unified"
				}
			},
			"code_snippets": [
				{
					"label": "typescript",
					"language": "typescript",
					"code": "const response = await env.AI.run(\n  'google/gemini-3.1-flash-tts',\n  { text: 'Hello, welcome to Cloudflare AI Gateway!' },\n)\nconsole.log(response)"
				},
				{
					"label": "curl",
					"language": "bash",
					"code": "curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \\\n  --header \"Authorization: Bearer $CLOUDFLARE_API_TOKEN\" \\\n  --header \"Content-Type: application/json\" \\\n  --data '{\n  \"model\": \"google/gemini-3.1-flash-tts\",\n  \"input\": {\n    \"text\": \"Hello, welcome to Cloudflare AI Gateway!\"\n  }\n}'"
				}
			]
		},
		{
			"name": "Custom Voice",
			"description": "Generate speech with a specific voice",
			"input": {
				"text": "The quick brown fox jumps over the lazy dog.",
				"voice": "Puck"
			},
			"output": {
				"audio": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__gemini-3.1-flash-tts/custom-voice.wav"
			},
			"raw_response": {
				"audio": "data:audio/l16;base64,...",
				"gatewayMetadata": {
					"keySource": "Unified"
				}
			},
			"code_snippets": [
				{
					"label": "typescript",
					"language": "typescript",
					"code": "const response = await env.AI.run(\n  'google/gemini-3.1-flash-tts',\n  { text: 'The quick brown fox jumps over the lazy dog.', voice: 'Puck' },\n)\nconsole.log(response)"
				},
				{
					"label": "curl",
					"language": "bash",
					"code": "curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \\\n  --header \"Authorization: Bearer $CLOUDFLARE_API_TOKEN\" \\\n  --header \"Content-Type: application/json\" \\\n  --data '{\n  \"model\": \"google/gemini-3.1-flash-tts\",\n  \"input\": {\n    \"text\": \"The quick brown fox jumps over the lazy dog.\",\n    \"voice\": \"Puck\"\n  }\n}'"
				}
			]
		},
		{
			"name": "Longer Text",
			"description": "Convert longer text to speech",
			"input": {
				"text": "Artificial intelligence has transformed the way we interact with technology. From voice assistants to autonomous vehicles, AI is reshaping our daily lives and creating new possibilities for innovation.",
				"voice": "Charon"
			},
			"output": {
				"audio": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__gemini-3.1-flash-tts/longer-text.wav"
			},
			"raw_response": {
				"audio": "data:audio/l16;base64,...",
				"gatewayMetadata": {
					"keySource": "Unified"
				}
			},
			"code_snippets": [
				{
					"label": "typescript",
					"language": "typescript",
					"code": "const response = await env.AI.run(\n  'google/gemini-3.1-flash-tts',\n  {\n    text: 'Artificial intelligence has transformed the way we interact with technology. From voice assistants to autonomous vehicles, AI is reshaping our daily lives and creating new possibilities for innovation.',\n    voice: 'Charon',\n  },\n)\nconsole.log(response)"
				},
				{
					"label": "curl",
					"language": "bash",
					"code": "curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \\\n  --header \"Authorization: Bearer $CLOUDFLARE_API_TOKEN\" \\\n  --header \"Content-Type: application/json\" \\\n  --data '{\n  \"model\": \"google/gemini-3.1-flash-tts\",\n  \"input\": {\n    \"text\": \"Artificial intelligence has transformed the way we interact with technology. From voice assistants to autonomous vehicles, AI is reshaping our daily lives and creating new possibilities for innovation.\",\n    \"voice\": \"Charon\"\n  }\n}'"
				}
			]
		},
		{
			"name": "Narrative Voice",
			"description": "Generate speech with a narrative voice style",
			"input": {
				"text": "Once upon a time, in a kingdom far away, there lived a brave knight who sought to protect the realm from all dangers.",
				"voice": "Kore"
			},
			"output": {
				"audio": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/google__gemini-3.1-flash-tts/narrative-voice.wav"
			},
			"raw_response": {
				"audio": "data:audio/l16;base64,...",
				"gatewayMetadata": {
					"keySource": "Unified"
				}
			},
			"code_snippets": [
				{
					"label": "typescript",
					"language": "typescript",
					"code": "const response = await env.AI.run(\n  'google/gemini-3.1-flash-tts',\n  {\n    text: 'Once upon a time, in a kingdom far away, there lived a brave knight who sought to protect the realm from all dangers.',\n    voice: 'Kore',\n  },\n)\nconsole.log(response)"
				},
				{
					"label": "curl",
					"language": "bash",
					"code": "curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \\\n  --header \"Authorization: Bearer $CLOUDFLARE_API_TOKEN\" \\\n  --header \"Content-Type: application/json\" \\\n  --data '{\n  \"model\": \"google/gemini-3.1-flash-tts\",\n  \"input\": {\n    \"text\": \"Once upon a time, in a kingdom far away, there lived a brave knight who sought to protect the realm from all dangers.\",\n    \"voice\": \"Kore\"\n  }\n}'"
				}
			]
		}
	],
	"default_example": null,
	"code_snippets": [],
	"supports_async": false,
	"zdr": true,
	"zdr_comment": null,
	"external_info": null,
	"terms": null,
	"cover_image_url": null,
	"metadata": {},
	"request_formats": null,
	"providers": null,
	"provider_details": [
		{
			"id": "google-vertex-ai",
			"pricing": {
				"input_audio_tokens": 3,
				"input_text_tokens": 0.75,
				"output_audio_tokens": 12,
				"output_text_tokens": 4.5
			}
		}
	],
	"banner": null,
	"created_at": "2026-05-22 17:53:10",
	"schema": {
		"input": {
			"$schema": "https://json-schema.org/draft/2020-12/schema",
			"type": "object",
			"properties": {
				"text": {
					"type": "string",
					"maxLength": 10000,
					"description": "The text to convert to speech. Maximum 10,000 characters."
				},
				"voice": {
					"description": "The voice to use for speech synthesis",
					"type": "string",
					"enum": [
						"Zephyr",
						"Puck",
						"Charon",
						"Kore",
						"Fenrir",
						"Leda",
						"Orus",
						"Aoede",
						"Callirrhoe",
						"Autonoe",
						"Enceladus",
						"Iapetus",
						"Umbriel",
						"Algieba",
						"Despina",
						"Erinome",
						"Algenib",
						"Rasalgethi",
						"Laomedeia",
						"Achernar",
						"Alnilam",
						"Schedar",
						"Gacrux",
						"Pulcherrima",
						"Achird",
						"Zubenelgenubi",
						"Vindemiatrix",
						"Sadachbia",
						"Sadaltager",
						"Sulafat"
					]
				},
				"temperature": {
					"description": "Controls randomness in generation (0-2)",
					"type": "number",
					"minimum": 0,
					"maximum": 2
				},
				"topP": {
					"description": "Nucleus sampling threshold (0-1). Tokens with cumulative probability up to topP are considered",
					"type": "number",
					"minimum": 0,
					"maximum": 1
				},
				"topK": {
					"description": "Only sample from the top K tokens. Smaller K = more focused, larger K = more diverse",
					"type": "integer",
					"exclusiveMinimum": 0,
					"maximum": 9007199254740991
				},
				"maxOutputTokens": {
					"description": "Maximum number of tokens to generate",
					"type": "integer",
					"exclusiveMinimum": 0,
					"maximum": 9007199254740991
				},
				"stopSequences": {
					"description": "Sequences where the model will stop generating further tokens",
					"type": "array",
					"items": {
						"type": "string"
					}
				}
			},
			"required": [
				"text"
			],
			"additionalProperties": false
		},
		"output": {
			"$schema": "https://json-schema.org/draft/2020-12/schema",
			"type": "object",
			"properties": {
				"audio": {
					"type": "string",
					"description": "Base64-encoded audio data (WAV format)"
				}
			},
			"required": [
				"audio"
			],
			"additionalProperties": false
		}
	}
}