6 image models · capabilities and pricing in one placeSee pricing →
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Models & pricing

MODEL DETAILS

Nano Banana 2

Compare tier prices first, then choose a ratio. Expand exact parameters and route quotes only when needed.

Public price
$0.017899–$0.059661
Routable routes
2
Model identity details

OGA submissions still use model ID nano-banana-2. The official Google name is Gemini 3.1 Flash Image, with current official model ID gemini-3.1-flash-image. Official IDs are descriptive, not submission aliases.

Choose a resolution and check the price

Quality and refund terms may differ within a tier. Review the exact quote before submitting.

Production invocation available

PRICING BY TIER

Choose a tier. Then a ratio.

Prices are per request. Ratio and size options are detailed below—without repeating every price.

USD / request
Generation

1K

Default quality

$0.017899– $0.035797per request

Supported ratios share the same price within each route and tier

Available routes
2
Size options
15
Billing & refund details

Ranges show published route prices, not arbitrary size combinations. The selected route and task-locked request determine the final price.

Zero delivery: full refund; Policy violation: full refund; Unrecoverable: full refund

Generation

2K

Default quality

$0.044746per request

Supported ratios share the same price within each route and tier

Available routes
1
Size options
10
Billing & refund details

Ranges show published route prices, not arbitrary size combinations. The selected route and task-locked request determine the final price.

Zero delivery: full refund; Policy violation: full refund; Unrecoverable: full refund

Generation

4K

Default quality

$0.059661per request

Supported ratios share the same price within each route and tier

Available routes
1
Size options
9
Billing & refund details

Ranges show published route prices, not arbitrary size combinations. The selected route and task-locked request determine the final price.

Zero delivery: full refund; Policy violation: full refund; Unrecoverable: full refund

Use this overview to compare tiers. Expand below for exact request values, route differences and complete prices.

Exact prices, supported ratios & integration parameters

PUBLIC PRICE

Choose a model and tier to find the matching public price

Narrow the options in order; the result below updates the current price, maximum authorization and available routes.

This HTML contains 6 safe price group(s)

Nano Banana 2

Generation · 1K

Current price / range$0.017899USD / request
Ratios / sizes
1:4 · 1:8 · 4:1 · 8:1
Quality
Default quality · approximate_tier
Maximum authorized price
$0.017899
Available routes
1
View price evidence and 4 exact request option(s)
Routes and source prices
1 route(s) · 4 source matrix record(s) · 4 display option(s)
Effective time
Oct 8, 2026, 2:31 PM UTC
Billing unit
per_request · USD / request
Refund policyZero delivery: full refund; Policy violation: full refund; Unrecoverable: full refundrpf_rrr
Choose an exact optionView the exact route matrix
Nano Banana 2

Generation · 1K

Current price / range$0.017899–$0.035797USD / request
Ratios / sizes
16:9 · 1:1 · 21:9 · 2:3 · 3:2 · 3:4 · 4:3 · 5:4 · 9:16
Quality
Default quality · approximate_tier
Maximum authorized price
$0.035797
Available routes
2
View price evidence and 9 exact request option(s)
Routes and source prices
2 route(s) · 18 source matrix record(s) · 18 display option(s)
Effective time
Oct 8, 2026, 2:31 PM UTC
Billing unit
per_request · USD / request
Refund policyZero delivery: full refund; Policy violation: full refund; Unrecoverable: full refundrpf_rrr
Choose an exact optionView the exact route matrix
Nano Banana 2

Generation · 1K

Current price / range$0.017899USD / request
Ratios / sizes
auto
Quality
Default quality · approximate_tier
Maximum authorized price
$0.017899
Available routes
1
View price evidence and 1 exact request option(s)
Routes and source prices
1 route(s) · 1 source matrix record(s) · 1 display option(s)
Effective time
Oct 8, 2026, 2:31 PM UTC
Billing unit
per_request · USD / request
Refund policyZero delivery: full refund; Policy violation: full refund; Unrecoverable: full refundrpf_rrr
  • auto
Check exact request parametersView the exact route matrix
Nano Banana 2

Generation · 1K

Current price / range$0.035797USD / request
Ratios / sizes
4:5
Quality
Default quality · approximate_tier
Maximum authorized price
$0.035797
Available routes
1
View price evidence and 1 exact request option(s)
Routes and source prices
1 route(s) · 1 source matrix record(s) · 1 display option(s)
Effective time
Oct 8, 2026, 2:31 PM UTC
Billing unit
per_request · USD / request
Refund policyZero delivery: full refund; Policy violation: full refund; Unrecoverable: full refundrpf_rrr
Use this configurationView the exact route matrix
Nano Banana 2

Generation · 2K

Current price / range$0.044746USD / request
Ratios / sizes
16:9 · 1:1 · 21:9 · 2:3 · 3:2 · 3:4 · 4:3 · 4:5 · 5:4 · 9:16
Quality
Default quality · approximate_tier
Maximum authorized price
$0.044746
Available routes
1
View price evidence and 10 exact request option(s)
Routes and source prices
1 route(s) · 10 source matrix record(s) · 10 display option(s)
Effective time
Oct 8, 2026, 2:31 PM UTC
Billing unit
per_request · USD / request
Refund policyZero delivery: full refund; Policy violation: full refund; Unrecoverable: full refundrpf_rrr
Choose an exact optionView the exact route matrix
Nano Banana 2

Generation · 4K

Current price / range$0.059661USD / request
Ratios / sizes
16:9 · 1:1 · 21:9 · 2:3 · 3:4 · 4:3 · 4:5 · 5:4 · 9:16
Quality
Default quality · approximate_tier
Maximum authorized price
$0.059661
Available routes
1
View price evidence and 9 exact request option(s)
Routes and source prices
1 route(s) · 9 source matrix record(s) · 9 display option(s)
Effective time
Oct 8, 2026, 2:31 PM UTC
Billing unit
per_request · USD / request
Refund policyZero delivery: full refund; Policy violation: full refund; Unrecoverable: full refundrpf_rrr
Choose an exact optionView the exact route matrix
Price grouping and snapshot provenance

Ratios share one group only when route sets, prices, effective times, parameter limits and refund rules are identical. The exact per-route matrix remains on each model detail page.

Production public snapshotsha256:cae799d7f…
View price range and locking rules
Public price range
$0.017899–$0.059661
per request
Routable routes
2
active + routable only
Safe price groups
6
ratios merge only on a complete signature
Price lock
At task submission
the task snapshot is authoritative
The prerendered facts below come only from the public model API; provider credentials, private hosts, procurement costs and admin evidence are excluded.GET /api/v1/models/nano-banana-2
Checking the same-origin model catalogThe initial HTML already contains a readable snapshot; a failed live check never clears it or reports false health.
Production public API snapshotGenerated:sha256:cae799d7f4fb2…
Current statusCurrently available
Verified operationsGeneration · Edit
Labelled tiers1K · 2K · 4K
Lowest public price$0.017899
Verified reference-image range0–3Generation 0; edit range is shown on each operation card
OGA submission model ID:nano-banana-2Official Google name:Gemini 3.1 Flash ImageCurrent official model ID:gemini-3.1-flash-imageLifecycle:stableOfficial source checked:
Legacy official model IDs (migration only):gemini-3.1-flash-image-preview
Model company:GoogleModel updated:
This model supports only the listed discrete ratios and resolution tiers. Arbitrary ratios and arbitrary WIDTHxHEIGHT pixel sizes are not supported. Every tier/ratio pair must be marked currently available on its own.custom=false

OPERATION CAPABILITY

Generation

Currently available

VERIFIED REQUEST CAPABILITY

Inspect exact request values by tier and ratio

Verified references 0–0

Currently available requires an active, routable public route. Verified, pending release records a successful technical request but offers no price or call promise.

Technical acceptance:

1K15 request values
—Available
auto
Approximate tier
Observed output1408×768
Observed formats: image/png
1:1Available
1:1
Approximate tier
Observed output1024×1024
Observed formats: image/png
16:9Available
16:9
Approximate tier
Observed output1376×768
Observed formats: image/png
9:16Available
9:16
Approximate tier
Observed output768×1376
Observed formats: image/png
4:3Available
4:3
Approximate tier
Observed output1200×896
Observed formats: image/png
3:4Available
3:4
Approximate tier
Observed output896×1200
Observed formats: image/png
3:2Available
3:2
Approximate tier
Observed output1264×848
Observed formats: image/png
2:3Available
2:3
Approximate tier
Observed output848×1264
Observed formats: image/png
5:4Available
5:4
Approximate tier
Observed output1152×928
Observed formats: image/png
4:5Available
4:5
Approximate tier
Observed output928×1152
Observed formats: image/png
21:9Available
21:9
Approximate tier
Observed output1584×672
Observed formats: image/png
1:4Available
1:4
Approximate tier
Observed output512×2064
Observed formats: image/png
4:1Available
4:1
Approximate tier
Observed output2064×512
Observed formats: image/png
1:8Available
1:8
Approximate tier
Observed output352×2928
Observed formats: image/png
8:1Available
8:1
Approximate tier
Observed output2928×352
Observed formats: image/png
2K10 request values
1:1Available
1:1
Approximate tier
Observed output2048×2048
Observed formats: image/png
16:9Available
16:9
Approximate tier
Observed output2752×1536
Observed formats: image/png
9:16Available
9:16
Approximate tier
Observed output1536×2752
Observed formats: image/png
2:3Available
2:3
Approximate tier
Observed output1696×2528
Observed formats: image/png
3:2Available
3:2
Approximate tier
Observed output2528×1696
Observed formats: image/png
3:4Available
3:4
Approximate tier
Observed output1792×2400
Observed formats: image/png
4:3Available
4:3
Approximate tier
Observed output2400×1792
Observed formats: image/png
4:5Available
4:5
Approximate tier
Observed output1856×2304
Observed formats: image/png
5:4Available
5:4
Approximate tier
Observed output2304×1856
Observed formats: image/png
21:9Available
21:9
Approximate tier
Observed output3168×1344
Observed formats: image/png
4K10 request values
1:1Available
1:1
Approximate tier
Observed output4096×4096
Observed formats: image/png
16:9Available
16:9
Approximate tier
Observed output5504×3072
Observed formats: image/png
9:16Available
9:16
Approximate tier
Observed output3072×5504
Observed formats: image/png
2:3Available
2:3
Approximate tier
Observed output3392×5056
Observed formats: image/png
3:2Verified, pending
3:2
Approximate tier
Observed output5056×3392
Observed formats: image/png
3:4Available
3:4
Approximate tier
Observed output3584×4800
Observed formats: image/png
4:3Available
4:3
Approximate tier
Observed output4800×3584
Observed formats: image/png
4:5Available
4:5
Approximate tier
Observed output3712×4608
Observed formats: image/png
5:4Available
5:4
Approximate tier
Observed output4608×3712
Observed formats: image/png
21:9Available
21:9
Approximate tier
Observed output6336×2688
Observed formats: image/png
Callable reference images
0–0
Outputs per request
1–1
Prompt limit
1,000 characters
Mask
Not supported
Result formats
image/png
Response representation
url
Public routeChannel 001activeroutable
Approximate tierThe request value is an approximate tier; actual dimensions come from the result file.
TierRatioRequest sizeSemanticsQualityPrice / requestEffective
1K16:916:9Approximate tier—$0.017899
1K1:11:1Approximate tier—$0.017899
1K1:41:4Approximate tier—$0.017899
1K1:81:8Approximate tier—$0.017899
1K21:921:9Approximate tier—$0.017899
1K2:32:3Approximate tier—$0.017899
1K3:23:2Approximate tier—$0.017899
1K3:43:4Approximate tier—$0.017899
1K4:14:1Approximate tier—$0.017899
1K4:34:3Approximate tier—$0.017899
1K5:45:4Approximate tier—$0.017899
1K8:18:1Approximate tier—$0.017899
1K9:169:16Approximate tier—$0.017899
1K—autoApproximate tier—$0.017899
Callable reference images
0–0
Outputs per request
1–1
Prompt limit
1,000 characters
Mask
Not supported
Result formats
image/png
Response representation
url
Resolution tiers
1K
Success sample—0 samples
Completion time— ms—
Billing basisper_requestEffective time is shown for each price tier above
View refund policy

Zero delivery: full refund; Policy violation: full refund; Unrecoverable: full refund

rpf_rrr
Public routeChannel 003activeroutable
Approximate tierThe request value is an approximate tier; actual dimensions come from the result file.
TierRatioRequest sizeSemanticsQualityPrice / requestEffective
1K16:916:9Approximate tier—$0.035797
1K1:11:1Approximate tier—$0.035797
1K21:921:9Approximate tier—$0.035797
1K2:32:3Approximate tier—$0.035797
1K3:23:2Approximate tier—$0.035797
1K3:43:4Approximate tier—$0.035797
1K4:34:3Approximate tier—$0.035797
1K4:54:5Approximate tier—$0.035797
1K5:45:4Approximate tier—$0.035797
1K9:169:16Approximate tier—$0.035797
2K16:916:9Approximate tier—$0.044746
2K1:11:1Approximate tier—$0.044746
2K21:921:9Approximate tier—$0.044746
2K2:32:3Approximate tier—$0.044746
2K3:23:2Approximate tier—$0.044746
2K3:43:4Approximate tier—$0.044746
2K4:34:3Approximate tier—$0.044746
2K4:54:5Approximate tier—$0.044746
2K5:45:4Approximate tier—$0.044746
2K9:169:16Approximate tier—$0.044746
4K16:916:9Approximate tier—$0.059661
4K1:11:1Approximate tier—$0.059661
4K21:921:9Approximate tier—$0.059661
4K2:32:3Approximate tier—$0.059661
4K3:43:4Approximate tier—$0.059661
4K4:34:3Approximate tier—$0.059661
4K4:54:5Approximate tier—$0.059661
4K5:45:4Approximate tier—$0.059661
4K9:169:16Approximate tier—$0.059661
Callable reference images
0–0
Outputs per request
1–1
Prompt limit
1,000 characters
Mask
Not supported
Result formats
image/png
Response representation
url
Resolution tiers
1K · 2K · 4K
Success sample—0 samples
Completion time— ms—
Billing basisper_requestEffective time is shown for each price tier above
View refund policy

Zero delivery: full refund; Policy violation: full refund; Unrecoverable: full refund

rpf_rrr

OPERATION CAPABILITY

Edit

Verified, pending release

VERIFIED REQUEST CAPABILITY

Inspect exact request values by tier and ratio

Verified references 1–3

Currently available requires an active, routable public route. Verified, pending release records a successful technical request but offers no price or call promise.

Technical acceptance:

1K1 request values
1:1Verified, pending
1:1
Approximate tier
Observed output1024×1024
Observed formats: image/png
There is no published route for this operation.