SeeDream 5.0 Pro API pricing: 1K, 1.5K and 2K per image, the Lite rate beside it, and the Arena ranks that justify it

SeeDream 5.0 Pro is the top image model in ByteDance's 5.0 line, released July 8, 2026, and on UnificAlly it costs $0.03 per image at 1K or 1.5K and $0.06 at 2K. One call takes a prompt of up to 6,000 characters, up to 10 reference images for editing, eight aspect ratios from 1:1 to 21:9, and returns exactly one image. This post is the SeeDream 5.0 pricing breakdown for developers: the per-resolution rate card, what 100, 1,000 and 10,000 images cost a month, the SeeDream 5.0 Lite and 4.5 rates beside it, the Arena ranks that make Pro the editing pick, how the price compares with the other image models on the platform, and the exact request the route accepts. Parameters and a playground are on the SeeDream 5.0 Pro API page.

TL;DR: SeeDream 5.0 Pro costs $0.03 per image at 1K and 1.5K and $0.06 at 2K on UnificAlly, so 1,000 images cost $30 at 1K or $60 at 2K. The first reference image is included; each further reference adds a small per-image surcharge listed on the pricing page. On Arena it ranks #10 on image edit (1394) and #12 on text-to-image (1255) as of October 6 and 7, 2026, ahead of every Nano Banana Pro row and GPT Image 1.5. Our call: Pro is the model for the render you deliver, infographics, posters, retouching and multi-reference composites, and 1.5K is the sweet spot because it costs the same as 1K. For sequential sets and chat-style editing, Lite at $0.028 is the cheaper route.

How much does the SeeDream 5.0 Pro API cost?

Two things set the rate: the resolution tier (1K and 1.5K share a rate, 2K costs double) and the number of reference images beyond the first. Aspect ratio, prompt length and output format do not change the price. The rates below refresh from the live price list on every deploy.

The detail that matters most for budgeting is the 1.5K tier: it costs exactly what 1K costs, so there is no reason to render at 1K on this model unless the destination demands the smaller file. The 2K tier doubles the rate and is the one to reserve for print and hero assets. Failed tasks are not billed; you pay for completed images only. The pricing page lists every image model side by side.

SeeDream 5.0 Pro cost per month at 100, 1,000 and 10,000 images

Monthly cost is count times rate per tier. The table multiplies the live per-image rates by three common volumes; a mixed month is each tier's count times its rate, plus the reference surcharge for edits that carry more than one reference.

Draft at 1.5K, keep the prompt and references, then rerun only the keepers at 2K: a team that generates 1,000 drafts and promotes 100 of them to 2K pays $30 plus $6, well under 1,000 images at 2K. There is no subscription and the balance does not expire.

SeeDream 5.0 Pro vs 5.0 Lite vs 4.5: which rate to pay

ByteDance built the 5.0 line as a pair: Pro for finished output, Lite for reasoning and flexibility. The 4.x line stays callable at its own rates.

The losses stay in. Lite and 4.5 cost less per image than Pro at 1K, and 4.5 keeps the stronger character-consistency handling. What Pro buys for the extra cents is rank: 117 Elo points over Lite on text-to-image and 100 on image edit, which on Arena's boards is the difference between the top dozen and the middle of the table. If the job is an infographic, a poster, a retouched portrait or a composite built from several references, Pro is the only one of the three that ranks with the leaders. If the job is a chat-driven edit loop, a numbered set or a reference pulled from the web, SeeDream 5.0 Lite does things Pro cannot, for less.

How SeeDream 5.0 Pro pricing compares with other image models

Per image at the lowest tier on UnificAlly today, with the Arena image-edit rank beside it, because editing is where Pro competes:

Nano Banana 2.1 is the uncomfortable comparison: cheaper per image and four places higher on image edit. SeeDream 5.0 Pro answers with 10 references per call, 1.5K at the 1K rate, text in ten-plus languages including right-to-left Arabic, and annotation-driven edits that follow boxes and handwritten notes on the reference. GPT Image 2.5 Flare is the same rate at 1K and ranks higher still, but adds a surcharge on every reference, so a six-reference composite is cheaper on SeeDream. Against Nano Banana Pro, Pro is both cheaper and higher ranked.

How to call SeeDream 5.0 Pro at the price you planned

One API key, POST /v1/tasks, and resolution set to the tier you priced above. This is the text-to-image request from the docs page, a 2K image billed at $0.06 when it completes.

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "bytedance/seedream-5.0-pro",
    "input": {
      "prompt": "A cyberpunk city at sunset, neon lights reflecting on wet streets",
      "aspect_ratio": "16:9",
      "resolution": "2K"
    }
  }'

Set resolution to 1.5K for the draft rate with most of the detail, add image_urls with up to 10 references to switch the same call to editing (the first reference is included, each further one carries the per-reference surcharge), and pick output_format of png or jpeg. The response returns a task_id; poll GET /v1/tasks/<task_id> or set callback_url. Full field reference: docs.unifically.com/models/image/bytedance/seedream-5.0-pro.

SeeDream 5.0 Pro FAQ

How much does the SeeDream 5.0 Pro API cost?

SeeDream 5.0 Pro costs $0.03 per image at 1K or 1.5K and $0.06 at 2K on UnificAlly. The first reference image is included and each further reference adds a small per-image surcharge listed on the pricing page. Failed tasks are not billed.

What do 1,000 SeeDream 5.0 Pro images cost?

$30 at 1K or 1.5K, or $60 at 2K, before any reference surcharge on multi-reference edits.

Does 1.5K cost more than 1K on SeeDream 5.0 Pro?

No. 1K and 1.5K share the $0.03 rate, so 1.5K is the better default. Only the 2K tier costs more, at $0.06.

How much does SeeDream 5.0 Lite cost compared with Pro?

SeeDream 5.0 Lite costs $0.028 per image against $0.03 for Pro at 1K. Lite returns sets of up to four images, takes up to six references and can pull web-search references; Pro returns one image per call with up to 10 references and ranks far higher on both Arena boards.

Is SeeDream 5.0 Pro worth it over Nano Banana 2.1?

Nano Banana 2.1 costs less per 1K image and ranks higher on Arena image edit (#6 against Pro's #10, October 6, 2026). SeeDream 5.0 Pro is worth the difference when the job needs 10 references, 1.5K output at the 1K rate, right-to-left or multi-language text, or annotation-driven edits; otherwise test 2.1 first.

What is the cheapest way to try the SeeDream 5.0 Pro API?

New UnificAlly accounts get a $0.50 signup balance, enough for 16 SeeDream 5.0 Pro images at 1K or 1.5K, with no subscription. After that, billing is pay-per-use and the balance never expires.

What will change this post

We will update the rate tables when ByteDance changes the SeeDream 5.0 rates or the reference surcharge, when a SeeDream 5.5 or 6.0 reaches the platform, and when the 5.0 Pro row moves on Arena by enough to change the ordering above. Prices on this page refresh from the live price list on every deploy, so the tokens stay current between those updates.

Related reading on SeeDream 5.0 Pro

• SeeDream 5.0 Pro API and SeeDream 5.0 Lite API: playgrounds, parameters, house renders.
• GPT Image 2 API pricing: the flat-rate model at the top of the image-edit board.
• Nano Banana 2.1 vs Nano Banana 2: the cheaper, higher-ranked rival.
• Qwen Image 2.0 API pricing: Alibaba's flat-rate editing line.