Google

Modes: image · video · audio · text · Models: 24

Vendor: Google AI for Developers · Vertex AI · Official API docs: Image · Video (Veo) · Music (Lyria)

Google supports image, video, audio, and text. Its catalog includes Veo, Gemini Omni, Nano Banana, Gemini TTS, Lyria, and Gemini text models. Gemini 3.8 Flash TTS and Gemini 3.8 Flash Lite TTS add speech with controllable delivery.

Models

id	Name	Mode	Input
`veo-3.1`	Veo 3.1	video	`t2v`
`veo-3.1-fast`	Veo 3.1 Fast	video	`t2v`
`veo-3.1-lite`	Veo 3.1 Lite	video	`t2v`
`gemini-nano-banana-2.1`	Nano Banana 2.1	image	`t2i`
`gemini-3.1-flash-image`	Nano Banana 2	image	`t2i`
`gemini-3.1-flash-lite-image`	Nano Banana 2 Lite	image	`t2i`
`gemini-3-pro-image`	Nano Banana Pro	image	`t2i`
`gemini-2.5-flash-image`	Nano Banana	image	`t2i`
`gemini-2.5-flash-tts`	Gemini 2.5 Flash TTS	audio	`tts`
`gemini-2.5-pro-tts`	Gemini 2.5 Pro TTS	audio	`tts`
`gemini-3.8-flash-tts`	Gemini 3.8 Flash TTS	audio	`tts`
`gemini-3.8-flash-lite-tts`	Gemini 3.8 Flash Lite TTS	audio	`tts`
`gemini-omni-flash-preview`	Gemini Omni	video	`t2v`
`gemini-omni-1.1-flash-preview`	Gemini Omni 1.1 Flash	video	`t2v`
`lyria-3-clip`	Lyria 3 Clip	audio	`music`
`lyria-3-pro`	Lyria 3 Pro	audio	`music`
`lyria-3.5`	Lyria 3.5	audio	`music`
`gemini-4-argon`	Gemini 4 Argon	text	`v2t`
`gemini-3-pro`	Gemini 3 Pro	text	`v2t`
`gemini-3.8-flash`	Gemini 3.8 Flash	text	`i2t`
`gemini-3.7-flash`	Gemini 3.7 Flash	text	`i2t`
`gemini-3.6-flash`	Gemini 3.6 Flash	text	`i2t`
`gemini-3.5-flash-lite`	Gemini 3.5 Flash Lite	text	`i2t`
`gemini-2.5-flash`	Gemini 2.5 Flash	text	`i2t`

Veo 3.1 (video)

bash

gen-ai generate -m veo-3.1 -p "a drone shot over a snowy ridge at golden hour" \
  --ar 16:9 -r 1080p -d 8 --audio-gen

json

{ "name": "picsart_generate",
  "arguments": { "model": "veo-3.1", "prompt": "a drone shot over a snowy ridge", "duration": 8, "resolution": "1080p", "generateAudio": true } }

Full params for every Veo / Gemini / Lyria model are in Parameters below.

Nano Banana Pro (image)

bash

gen-ai generate -m gemini-3-pro-image -p "a cinematic product render of a smart speaker" --ar 16:9 -r 4K

Gemini TTS & Lyria (audio)

bash

gen-ai generate -m gemini-2.5-pro-tts -p "Here is your daily briefing."   # speech
gen-ai generate -m lyria-3-pro -p "uplifting cinematic orchestral score"  # music

Parameters

Full parameter surface for every model, sourced from gen-ai models info <id> --json. CLI flags show the primary short form; the canonical --kebab-case long form always works too.

`veo-3.1` — Veo 3.1

Try veo-3.1 in Playground ↗

Input type: t2v

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`16:9` · `9:16` (default `16:9`)
`duration`	`-d`	enum	`4` · `6` · `8` (default `8`)
`resolution`	`-r`	enum	`720p` · `1080p` · `4k` (default `720p`)
`imageUrls`	`-i`	file	image (up to 3)
`generateAudio`	`--audio-gen`	boolean	`true` · `false` (default `true`)
`negativePrompt`	`--neg`	text	free text
`startFrame`	`--start-frame`	file	image
`endFrame`	`--end-frame`	file	image

`veo-3.1-fast` — Veo 3.1 Fast

Try veo-3.1-fast in Playground ↗

Input type: t2v

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`16:9` · `9:16` (default `16:9`)
`duration`	`-d`	enum	`4` · `6` · `8` (default `8`)
`resolution`	`-r`	enum	`720p` · `1080p` · `4k` (default `720p`)
`imageUrls`	`-i`	file	image (up to 3)
`generateAudio`	`--audio-gen`	boolean	`true` · `false` (default `true`)
`negativePrompt`	`--neg`	text	free text
`startFrame`	`--start-frame`	file	image
`endFrame`	`--end-frame`	file	image

`veo-3.1-lite` — Veo 3.1 Lite

Try veo-3.1-lite in Playground ↗

Input type: t2v

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`16:9` · `9:16` (default `16:9`)
`duration`	`-d`	enum	`4` · `6` · `8` (default `8`)
`resolution`	`-r`	enum	`720p` · `1080p` (default `720p`)
`startFrame`	`--start-frame`	file	image

`gemini-nano-banana-2.1` — Nano Banana 2.1

Try gemini-nano-banana-2.1 in Playground ↗

Input type: t2i

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`1:1` · `16:9` · `9:16` · `3:4` · `4:3` · `2:3` · `21:9` · `auto` (default `1:1`)
`resolution`	`-r`	enum	`1K` · `2K` · `4K` (default `1K`)
`count`	`-n`	enum	`1` · `2` · `4` · `6` · `8` · `10` (default `1`)
`seed`	`--seed`	range	`0`–`2147483647`, step 1
`thinkingLevel`	`--thinking-level`	enum	`minimal` (Minimal (faster)) · `medium` (Medium (balanced)) · `high` (High (more reasoning)) (default `minimal`)
`imageUrls`	`-i`	file	image (up to 14)

`gemini-3.1-flash-image` — Nano Banana 2

Try gemini-3.1-flash-image in Playground ↗

Input type: t2i

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`1:1` · `16:9` · `9:16` · `3:4` · `4:3` · `3:2` · `2:3` · `4:5` · `5:4` · `4:1` · `1:4` · `8:1` · `1:8` · `21:9` · `auto` (default `1:1`)
`resolution`	`-r`	enum	`0.5K` · `1K` · `2K` · `4K` (default `1K`)
`count`	`-n`	enum	`1` · `2` · `4` · `6` · `8` · `10` (default `1`)
`seed`	`--seed`	range	`0`–`2147483647`, step 1
`thinkingLevel`	`--thinking-level`	enum	`minimal` (Minimal (faster)) · `high` (High (more reasoning)) (default `minimal`)
`imageUrls`	`-i`	file	image (up to 14)

`gemini-3.1-flash-lite-image` — Nano Banana 2 Lite

Try gemini-3.1-flash-lite-image in Playground ↗

Input type: t2i

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`1:1` · `16:9` · `9:16` · `3:4` · `4:3` · `3:2` · `2:3` · `4:5` · `5:4` · `4:1` · `1:4` · `8:1` · `1:8` · `21:9` · `auto` (default `1:1`)
`count`	`-n`	enum	`1` · `2` · `4` · `6` · `8` · `10` (default `1`)
`seed`	`--seed`	range	`0`–`2147483647`, step 1
`thinkingLevel`	`--thinking-level`	enum	`minimal` (Minimal (faster)) · `high` (High (more reasoning)) (default `minimal`)
`imageUrls`	`-i`	file	image (up to 14)

`gemini-3-pro-image` — Nano Banana Pro

Try gemini-3-pro-image in Playground ↗

Input type: t2i

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`1:1` · `16:9` · `9:16` · `3:4` · `4:3` · `2:3` · `21:9` · `auto` (default `1:1`)
`resolution`	`-r`	enum	`1K` · `2K` · `4K` (default `2K`)
`count`	`-n`	enum	`1` · `2` · `4` · `6` · `8` · `10` (default `1`)
`seed`	`--seed`	range	`0`–`2147483647`, step 1
`thinkingBudget`	`--thinking-budget`	range	`128`–`24576`, step 128 (default `128`)
`imageUrls`	`-i`	file	image (up to 14)

`gemini-2.5-flash-image` — Nano Banana

Try gemini-2.5-flash-image in Playground ↗

Input type: t2i

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`1:1` · `16:9` · `9:16` · `3:4` · `4:3` · `2:3` · `21:9` · `auto` (default `16:9`)
`count`	`-n`	enum	`1` · `2` · `4` · `6` · `8` · `10` (default `1`)
`seed`	`--seed`	range	`0`–`2147483647`, step 1
`imageUrls`	`-i`	file	image (up to 14)

`gemini-2.5-flash-tts` — Gemini 2.5 Flash TTS

Try gemini-2.5-flash-tts in Playground ↗

Input type: tts

Param	CLI flag	Type	Values
`language`	`--language`	text	free text
`accent`	`--accent`	text	free text
`prompt`	`-p`	text	free text (≤6000 chars)
`voiceId`	`--voice`	catalog	runtime catalog; run `gen-ai models info gemini-2.5-flash-tts --json` for current values (default `Kore`)
`parts`	`--parts-text` · `--parts-speaker`	object[]	`{text, speaker}`
`multiSpeakerVoiceConfigs`	`--multi-speaker-voice-configs-speaker` · `--multi-speaker-voice-configs-voice-name`	object[]	`{speaker, voiceName}`

`gemini-2.5-pro-tts` — Gemini 2.5 Pro TTS

Try gemini-2.5-pro-tts in Playground ↗

Input type: tts

Param	CLI flag	Type	Values
`language`	`--language`	text	free text
`accent`	`--accent`	text	free text
`prompt`	`-p`	text	free text (≤6000 chars)
`voiceId`	`--voice`	catalog	runtime catalog; run `gen-ai models info gemini-2.5-pro-tts --json` for current values (default `Kore`)
`parts`	`--parts-text` · `--parts-speaker`	object[]	`{text, speaker}`
`multiSpeakerVoiceConfigs`	`--multi-speaker-voice-configs-speaker` · `--multi-speaker-voice-configs-voice-name`	object[]	`{speaker, voiceName}`

`gemini-3.8-flash-tts` — Gemini 3.8 Flash TTS

Try gemini-3.8-flash-tts in Playground ↗

Input type: tts

Param	CLI flag	Type	Values
`language`	`--language`	text	free text
`accent`	`--accent`	text	free text
`prompt`	`-p`	text	free text (≤6000 chars)
`voiceId`	`--voice`	catalog	runtime catalog; run `gen-ai models info gemini-3.8-flash-tts --json` for current values (default `Kore`)
`style`	`--style`	text	free text (≤500 chars)
`parts`	`--parts-text` · `--parts-speaker` · `--parts-style`	object[]	`{text, speaker, style}`
`multiSpeakerVoiceConfigs`	`--multi-speaker-voice-configs-speaker` · `--multi-speaker-voice-configs-voice-name`	object[]	`{speaker, voiceName}`

`gemini-3.8-flash-lite-tts` — Gemini 3.8 Flash Lite TTS

Try gemini-3.8-flash-lite-tts in Playground ↗

Input type: tts

Param	CLI flag	Type	Values
`language`	`--language`	text	free text
`accent`	`--accent`	text	free text
`prompt`	`-p`	text	free text (≤6000 chars)
`voiceId`	`--voice`	catalog	runtime catalog; run `gen-ai models info gemini-3.8-flash-lite-tts --json` for current values (default `Kore`)
`style`	`--style`	text	free text (≤500 chars)
`parts`	`--parts-text` · `--parts-speaker` · `--parts-style`	object[]	`{text, speaker, style}`
`multiSpeakerVoiceConfigs`	`--multi-speaker-voice-configs-speaker` · `--multi-speaker-voice-configs-voice-name`	object[]	`{speaker, voiceName}`

`gemini-omni-flash-preview` — Gemini Omni

Try gemini-omni-flash-preview in Playground ↗

Input type: t2v

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`16:9` · `9:16` (default `16:9`)
`duration`	`-d`	enum	`3` · `5` · `6` · `8` · `10` (default `8`)
`imageUrls`	`-i`	file	image (up to 1)
`videoUrl`	`--video`	file	video

`gemini-omni-1.1-flash-preview` — Gemini Omni 1.2 Flash

The id says 1.1 and the name says 1.2. That inconsistency is upstream's; match on gemini-omni-1.1-flash-preview. Despite the -preview suffix this is a production model.

Try gemini-omni-1.1-flash-preview in Playground ↗

Input type: t2v

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`aspectRatio`	`--ar`	enum	`16:9` · `9:16` (default `16:9`)
`resolution`	`-r`	enum	`360p` · `720p` · `1080p` · `4k` (default `720p`)
`duration`	`-d`	enum	`3` · `4` · `5` · `6` · `7` · `8` · `9` · `10` (default `8`)
`startFrame`	`--start-frame`	file	image
`endFrame`	`--end-frame`	file	image
`imageUrls`	`-i`	file	image (up to 5)
`videoUrl`	`--video`	file	video
`videoUrls`	`--video-urls`	file	video (up to 3)

`lyria-3-clip` — Lyria 3 Clip

Try lyria-3-clip in Playground ↗

Input type: music

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 1)

`lyria-3-pro` — Lyria 3 Pro

Try lyria-3-pro in Playground ↗

Input type: music

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 1)

Notes: Veo audio is native (generateAudio); Imagen and Gemini image models differ in resolution and reasoning controls (thinkingLevel / thinkingBudget). TTS voiceId values are Gemini voice presets.

`lyria-3.5` — Lyria 3.5

Try lyria-3.5 in Playground ↗

Input type: music

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 10)

`gemini-4-argon` — Gemini 4 Argon

Try gemini-4-argon in Playground ↗

Input type: v2t

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 8)
`videoUrl`	`--video`	file	video
`thinking`	`--thinking`	enum	`off` · `low` · `high` (default `off`)

`gemini-3-pro` — Gemini 3 Pro

Try gemini-3-pro in Playground ↗

Input type: v2t

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 8)
`videoUrl`	`--video`	file	video
`thinking`	`--thinking`	enum	`off` · `low` · `high` (default `off`)

`gemini-3.8-flash` — Gemini 3.8 Flash

Try gemini-3.8-flash in Playground ↗

Input type: i2t

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 8)
`thinking`	`--thinking`	enum	`off` · `low` · `medium` · `high` (default `off`)

`gemini-3.7-flash` — Gemini 3.7 Flash

Try gemini-3.7-flash in Playground ↗

Input type: i2t

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 8)
`thinking`	`--thinking`	enum	`off` · `low` · `medium` · `high` (default `off`)

`gemini-3.6-flash` — Gemini 3.6 Flash

Try gemini-3.6-flash in Playground ↗

Input type: i2t

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 8)
`thinking`	`--thinking`	enum	`off` · `low` · `medium` · `high` (default `off`)

`gemini-3.5-flash-lite` — Gemini 3.5 Flash Lite

Try gemini-3.5-flash-lite in Playground ↗

Input type: i2t

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 8)

`gemini-2.5-flash` — Gemini 2.5 Flash

Try gemini-2.5-flash in Playground ↗

Input type: i2t

Param	CLI flag	Type	Values
`prompt`	`-p`	text	required
`imageUrls`	`-i`	file	image (up to 8)
`thinking`	`--thinking`	enum	`off` · `low` · `medium` · `high` (default `off`)

Google ​

Models ​

Veo 3.1 (video) ​

Nano Banana Pro (image) ​

Gemini TTS & Lyria (audio) ​

Parameters ​

veo-3.1 — Veo 3.1 ​

veo-3.1-fast — Veo 3.1 Fast ​

veo-3.1-lite — Veo 3.1 Lite ​

gemini-nano-banana-2.1 — Nano Banana 2.1 ​

gemini-3.1-flash-image — Nano Banana 2 ​

gemini-3.1-flash-lite-image — Nano Banana 2 Lite ​

gemini-3-pro-image — Nano Banana Pro ​

gemini-2.5-flash-image — Nano Banana ​

gemini-2.5-flash-tts — Gemini 2.5 Flash TTS ​

gemini-2.5-pro-tts — Gemini 2.5 Pro TTS ​

gemini-3.8-flash-tts — Gemini 3.8 Flash TTS ​

gemini-3.8-flash-lite-tts — Gemini 3.8 Flash Lite TTS ​

gemini-omni-flash-preview — Gemini Omni ​

gemini-omni-1.1-flash-preview — Gemini Omni 1.2 Flash ​

lyria-3-clip — Lyria 3 Clip ​

lyria-3-pro — Lyria 3 Pro ​

lyria-3.5 — Lyria 3.5 ​

gemini-4-argon — Gemini 4 Argon ​

gemini-3-pro — Gemini 3 Pro ​

gemini-3.8-flash — Gemini 3.8 Flash ​

gemini-3.7-flash — Gemini 3.7 Flash ​

gemini-3.6-flash — Gemini 3.6 Flash ​

gemini-3.5-flash-lite — Gemini 3.5 Flash Lite ​

gemini-2.5-flash — Gemini 2.5 Flash ​

Google

Models

Veo 3.1 (video)

Nano Banana Pro (image)

Gemini TTS & Lyria (audio)

Parameters

`veo-3.1` — Veo 3.1

`veo-3.1-fast` — Veo 3.1 Fast

`veo-3.1-lite` — Veo 3.1 Lite

`gemini-nano-banana-2.1` — Nano Banana 2.1

`gemini-3.1-flash-image` — Nano Banana 2

`gemini-3.1-flash-lite-image` — Nano Banana 2 Lite

`gemini-3-pro-image` — Nano Banana Pro

`gemini-2.5-flash-image` — Nano Banana

`gemini-2.5-flash-tts` — Gemini 2.5 Flash TTS

`gemini-2.5-pro-tts` — Gemini 2.5 Pro TTS

`gemini-3.8-flash-tts` — Gemini 3.8 Flash TTS

`gemini-3.8-flash-lite-tts` — Gemini 3.8 Flash Lite TTS

`gemini-omni-flash-preview` — Gemini Omni

`gemini-omni-1.1-flash-preview` — Gemini Omni 1.2 Flash

`lyria-3-clip` — Lyria 3 Clip

`lyria-3-pro` — Lyria 3 Pro

`lyria-3.5` — Lyria 3.5

`gemini-4-argon` — Gemini 4 Argon

`gemini-3-pro` — Gemini 3 Pro

`gemini-3.8-flash` — Gemini 3.8 Flash

`gemini-3.7-flash` — Gemini 3.7 Flash

`gemini-3.6-flash` — Gemini 3.6 Flash

`gemini-3.5-flash-lite` — Gemini 3.5 Flash Lite

`gemini-2.5-flash` — Gemini 2.5 Flash