Studio Verdict●
Model family · Google

Gemini image / Nano Banana; legacy Imagen

Google image catalog groups native Gemini image models with legacy Imagen; these are distinct model families, not interchangeable names.

Applications and interfaces are not necessarily underlying models. Prices retain their unit and scope; recheck before purchase. Historical or deprecated entries are documentation, not recommendations.

Models #

Name
Nano Banana 2.1
Version
gemini-nano-banana-2.1
Status
Stable; latest update October 2026
Source review: 2026-10-21
Name
Nano Banana 2
Version
gemini-3.1-flash-image
Status
Listed in current pricing and guide
Source review: 2026-10-21
Name
Nano Banana 2 Lite
Version
gemini-3.1-flash-lite-image
Status
Listed in current pricing and guide
Source review: 2026-10-21
Name
Nano Banana Pro
Version
gemini-3-pro-image
Status
Stable; model latest-update field November 2025
Source review: 2026-10-21
Name
Nano Banana
Version
gemini-2.5-flash-image
Status
Earlier model documented; lifecycle not separately checked
Source review: 2026-10-21
Historical / availability warning: read the documented status below.
Name
Imagen
Version
Not established from reviewed sources
Status
Shut down in Gemini API
Source review: 2026-10-21

Products #

Name
Google AI Studio
Relationship
Developer interface linked by model pages
Ui access
Try-in-Studio links present; check limits for the intended account
Api access
Gemini API documented separately
Source review: 2026-10-21
Historical / availability warning: read the documented status below.
Name
Gemini API
Relationship
Programmatic model service
Ui access
Not established from reviewed sources
Api access
Native image generation and conversational editing; Imagen no longer available here
Source review: 2026-10-21

Capabilities #

Task
Nano Banana 2.1 generation/editing
Inputs
  • Text
  • Images
  • Video
  • PDF
Outputs
  • Image
  • Text
Resolutions
  • 1K
  • 2K
  • 4K
Formats
  • PNG
  • JPEG examples
Limitations
  • Up to 14 references: 4-character consistency / 10-object fidelity
  • No audio generation, function calling, structured outputs or caching
Source review: 2026-10-21
Task
Nano Banana Pro generation/editing
Inputs
  • Text
  • Images
Outputs
  • Image
  • Text
Resolutions
  • 1K
  • 2K
  • 4K
Formats
  • PNG examples
Limitations
  • No audio/video input documented
  • Search grounding supported; not a factuality guarantee
Source review: 2026-10-21
Task
Family differences
Inputs
  • Model-dependent
Outputs
  • Images
Resolutions
  • Flash Image additionally supports 512px
  • Flash Lite Image only 1K
Formats
Not recorded, not necessarily unsupported
Limitations
  • SynthID watermark included
  • No audio input
  • Requested output count may not be followed
Source review: 2026-10-21

Pricing #

Scope
API_standard
Model or product
Nano Banana 2.1
Amount
1.5
Currency
USD
Unit
million input tokens
Conditions
Text/image/video
Checked at
2026-10-21
Tax status
Not normalized; consult linked provider terms/region before quoting a checkout total.
Source review: 2026-10-21
Scope
API_standard
Model or product
Nano Banana 2.1
Amount
30
Currency
USD
Unit
million image output tokens
Conditions
Text/thinking output separately $7.50/million
Checked at
2026-10-21
Tax status
Not normalized; consult linked provider terms/region before quoting a checkout total.
Source review: 2026-10-21
Scope
API_standard
Model or product
Nano Banana 2.1
Amount
0.0336
Currency
USD
Unit
1K output image
Conditions
Output-only equivalent; input and optional grounding additional
Checked at
2026-10-21
Tax status
Not normalized; consult linked provider terms/region before quoting a checkout total.
Source review: 2026-10-21
Scope
API_standard
Model or product
Nano Banana 2.1
Amount
0.0504
Currency
USD
Unit
2K output image
Conditions
Output-only equivalent
Checked at
2026-10-21
Tax status
Not normalized; consult linked provider terms/region before quoting a checkout total.
Source review: 2026-10-21
Scope
API_standard
Model or product
Nano Banana 2.1
Amount
0.113
Currency
USD
Unit
4K output image
Conditions
Official rounded output-only equivalent
Checked at
2026-10-21
Tax status
Not normalized; consult linked provider terms/region before quoting a checkout total.
Source review: 2026-10-21
Scope
API_batch
Model or product
Nano Banana 2.1
Amount
15
Currency
USD
Unit
million image output tokens
Conditions
Batch processing
Checked at
2026-10-21
Tax status
Not normalized; consult linked provider terms/region before quoting a checkout total.
Source review: 2026-10-21
Scope
UI_subscription
Model or product
Gemini app / Google AI plans
Amount
Not established from reviewed sources
Currency
Not established from reviewed sources
Unit
subscription
Conditions
Not checked; distinct from developer API billing
Checked at
2026-10-21
Tax status
Not normalized; consult linked provider terms/region before quoting a checkout total.
Source review: 2026-10-21

Commercial use #

Summary
Developer services are for professional/business use. Google does not claim ownership of generated content; users remain responsible for lawful use and applicable attribution. This is not a guarantee of uniqueness or third-party rights clearance.
Source review: 2026-10-21

Privacy #

Summary
Unpaid services generally use prompts/responses for improvement and may involve human review: do not submit confidential data. Paid services do not use prompts/responses for improvement, but retain limited safety logs. EEA/Switzerland/UK exceptions and billing-linked AI Studio accounts receive paid-service handling.
Source review: 2026-10-21

Contradictions #

No information recorded in this section. This is not evidence of absence.

Unknowns #

Gemini app UI plan costs and exact model routing not checked.Source review: 2026-10-21
Historical / availability warning: read the documented status below.
Imagen shutdown verified only for Gemini API; do not generalize to every Google Cloud offering.Source review: 2026-10-21
Model update month, documentation update date and public launch date are different.Source review: 2026-10-21
Other model prices omitted rather than inferred from Nano Banana 2.1.Source review: 2026-10-21
Confirm regional availability and quotas for the intended account.Source review: 2026-10-21

Sources #

  1. Nano Banana image generation ↗

    Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.

  2. Gemini Developer API pricing ↗

    Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.

  3. Gemini Nano Banana 2.1 ↗

    Reviewed 2026-10-21 · Evidence status: official page read · Page updated 2026-10-06; model update October 2026.

  4. Gemini 3 Pro image ↗

    Reviewed 2026-10-21 · Evidence status: official page read · Page updated 2026-09-03; model update November 2025.

  5. Generate images using Imagen ↗

    Reviewed 2026-10-21 · Evidence status: official page read · Shutdown notice; page updated 2026-09-17.

  6. Gemini API Additional Terms of Service ↗

    Reviewed 2026-10-21 · Evidence status: official page read · Effective 2026-03-23; developer-service scope.