Seedream vs Nano Banana 2 for AI image generation
Choose Seedream 5.0 Lite for the lowest-credit fixed 2K path, Seedream 5.0 Pro for fixed 1K, Seedream 4.5 for fixed 2K at 4 credits, or Nano Banana 2 for Kanvora's default 1K or 2K Google-direct path. Seedream 4.5 Edit is a separate one-reference operation.
Seedream 5.0 / 4.5
Three fixed-size text-to-image paths through fal, plus a separate Seedream 4.5 reference-edit operation.
- Best fit
- A required Seedream generation or edit version with a known fixed output and supplier path.
- Output
- Lite and 4.5: fixed 2K. Pro: fixed 1K. 4.5 Edit: fixed 2K
- Cost
- Lite: 3 credits. 4.5 and 4.5 Edit: 4. Pro: 6
Nano Banana 2
A Google-direct text-to-image path with a 1K or 2K choice.
- Best fit
- A lower-resolution composition pass or a brief that needs output-size choice.
- Output
- One 1K or 2K image
- Cost
- 4 credits at 1K, 5 at 2K
Compare the same decision criteria
The matrix compares only live Kanvora behavior. It does not turn one official proof into a benchmark or import capabilities from provider marketing that Kanvora does not expose.
| Criterion | Seedream 5.0 / 4.5 | Nano Banana 2 | Decision rule |
|---|---|---|---|
| Starting input | Text prompt for three generation paths; one reference image plus prompt for separate 4.5 Edit | Text prompt | Use Seedream 4.5 Edit only when an owned input image must be transformed. The generation comparison remains prompt-only. |
| Frame ratios | 1:1, 16:9, 9:16, 4:3, or 3:4 | 1:1, 16:9, 9:16, 4:3, or 3:4 | Choose the destination frame before comparing models. |
| Output size | Lite and 4.5: fixed 2K. Pro: fixed 1K. 4.5 Edit: fixed 2K | 1K or 2K | Nano Banana 2 exposes a size choice. Each Seedream operation keeps one fixed live setting. |
| Credits | Lite: 3. 4.5 and 4.5 Edit: 4. Pro: 6 per attempt | 4 at 1K or 5 at 2K | Lite minimizes credits. Seedream 4.5 follows Kanvora's 4-credit coverage for documented $0.04 COGS. |
| Provider path | fal | Google direct | Use the path your workflow or vendor policy requires. |
| Uncertain status | Wait while Kanvora reconciles the original fal request | Wait while Kanvora reconciles the original Google request | Do not submit a duplicate paid attempt while the original job is unresolved. |
On smaller screens, this matrix scrolls inside its own frame. The page itself does not scroll sideways.
Compare official proofs without pretending they are a benchmark
These are site-owned, AI-generated Kanvora examples from each live model. They use different prompts and generation dates, so they prove that each production path has returned a stored file, not that one model is better.
AI-generated · Kanvora officialSeedream 5.0 Lite official proof
A fixed 2K square from the live Lite path. Kanvora does not present this as Seedream 5.0 Pro or Seedream 4.5 output; those model pages keep reserved proof slots until source-tracked assets are approved.
Seedream 5.0 Lite · 1:1 · Generated Aug 18, 2026
AI-generated · Kanvora officialNano Banana 2 official proof
A 1K square generated through the live Nano Banana 2 path.
Nano Banana 2 · 1:1 · Generated Aug 20, 2026A fair quality evaluation requires a prompt set, repeated runs, a declared scoring method, and current model versions. This pilot page does not claim that study has been run.
Choose by the constraint that actually changes the answer
Each rehearsal starts with an observable requirement, applies one decision rule, and ends at a prepared creator rather than a generic product CTA.
You want the most complete attempts from a 20-credit starting balance.
Signal: The brief is exploratory, 2K is acceptable, and each revision changes one visible variable.
Choose Seedream 5.0 Lite.Open the Seedream 5.0 Lite rehearsalSix 3-credit attempts fit inside 20 credits, with 2 credits left. Nano Banana 2 1K fits five attempts and Nano Banana 2 2K fits four.
Your workflow explicitly requires Seedream 4.5 for a prompt-only fixed 2K image.
Signal: The required model version is fixed and no reference image is needed.
Choose Seedream 4.5 text-to-image.Open the Seedream 4.5 rehearsalThe live path costs 4 credits, keeps one fixed 2K output, and does not replace Kanvora's Nano Banana 2 default.
Your workflow explicitly requires Seedream 5.0 Pro at the small output tier.
Signal: The model requirement is fixed before generation, and one fixed 1K output is acceptable.
Choose Seedream 5.0 Pro.Open the Seedream 5.0 Pro rehearsalThe Pro text-to-image path costs 6 credits, returns fixed 1K on Kanvora, and uses fal’s documented small-size supplier tier.
You need 2K and your organization requires a Google-direct provider path.
Signal: Vendor routing is a fixed policy, not a preference inferred from one image.
Choose Nano Banana 2 2K.Open the Nano Banana 2 2K rehearsalNano Banana 2 is the live Google-direct route. The 2K setting costs 5 credits per attempt.
A current request is QUEUED, RUNNING, or UNKNOWN.
Signal: The first provider job has not reached a definite terminal state.
Choose neither yet.Review the prepared brief without submittingWait for Kanvora to settle the original request. Switching models now creates a separate paid attempt and does not resolve the first one.
Account for switching cost and evidence limits
Changing models is a new generation, not a migration of an in-progress job. Preserve the brief, change one decision variable, and record why the extra attempt is worth its credits.
Switching and handoff costs
- A model switch creates a separate credit hold and provider request.
- The same prompt can produce a different composition, so manual review starts again.
- An active or uncertain job still has to settle before its hold can be captured or released.
- Provider routing changes from fal to Google direct or the reverse.
What the comparison cannot prove
- One official image cannot establish a universal quality winner.
- 2K resolution does not prove text accuracy, identity, rights, or factual correctness.
- Credit price does not predict whether the first output will satisfy a specific art direction.
- None of the four compared text-to-image paths accepts a reference image. Seedream 4.5 Edit is a separate one-reference operation.
Run the same brief through the path that fits the constraint.
Both creator links carry a legal operation, model ID, prompt, ratio, and supported output setting. Sign-in and safety checks remain at the real generation boundary.