Can I use either FLUX 3 or Seedance 2.5 today?

Only if you are in China. FLUX 3 launched July 23 into gated early access with no public API and no pricing. Seedance 2.5 released July 31 and is live in Jimeng AI and Doubao Pro, but its Volcano Ark API is still 'coming soon' and no international endpoint exists. Anyone selling you API access to either right now is selling something else.

Unknowable today — no one has run them head to head, and neither has entered a public arena. What's known points at different strengths: FLUX 3 generates audio jointly with the picture and reportedly handles dialogue-heavy scenes well, while the Seedance line leads on fast, kinetic action and multi-modal reference control. In BFL's own preference test, FLUX 3 scored 52% against Seedance 2.0 — a tie against the previous Seedance generation.

Which generates longer video?

Seedance 2.5, and by more than the headline: 30 seconds in a single generation against FLUX 3's 20, plus multi-round extension that carries subject, setting and pacing across rounds into several coherent minutes. FLUX 3 chains clips into multi-shot sequences instead.

Which will be cheaper?

Neither has published pricing. History favours ByteDance: the Seedance line has consistently priced well below Google's Veo family, while Black Forest Labs has never sold video by the second before. We publish measured per-clip costs for both within hours of their APIs opening.

FLUX 3 vs Seedance 2.5: the two summer releases, honestly compared

Updated July 31, 2026

One launched into a waiting list; the other shipped on July 31 into two Chinese apps and no API. Neither is something a team outside China can put in a pipeline this afternoon — so this comparison is about what each has actually committed to, and which one to plan around.

The state of play

FLUX 3 (Black Forest Labs, launched July 23, 2026) is a single multimodal network: image, video with natively generated audio, and robot action prediction. Video is open to approved early-access applicants; the image tier, the public API, the pricing and the open weights are all still ahead of it.

Seedance 2.5 (ByteDance) shipped on July 31, 2026, five weeks after its preview: 30-second generations that extend into minutes, up to 50 reference assets in one request, and editing addressed by timestamp. It is live inside Jimeng AI and Doubao Pro — but the Volcano Ark API is still “coming soon”, so outside those two Chinese apps you cannot use it either.

Side by side

	FLUX 3	Seedance 2.5
Status	Launched Jul 23, 2026 — gated early access	Released Jul 31, 2026 — no API yet
How to get it	Apply at bfl.ai, approved users only	Jimeng AI or Doubao Pro; no API
Max single generation	20 seconds	30 seconds, extendable into minutes
Longer pieces	Agentic chaining into multi-shot sequences	Multi-round extension into several minutes
Native audio	Yes — dialogue, SFX, music, generated jointly	Yes — carried over and improved
Resolution	720p in early access, 1080p expected	Up to 4K (2.0 lineage)
Reference inputs	Up to 10 images, plus video and audio	30 images, 10 videos, 10 audio
Also generates images	Yes — same network, tier not open yet	No — video only
Open weights	FLUX 3 Dev confirmed, undated	No
Pricing	Not published	Not published

Where each one should win

FLUX 3, on the evidence so far: anything where sound carries the shot. Audio generated in the same pass means impacts land on the right frame and dialogue is lip-matched — early testers consistently single out dialogue-heavy and dramatic scenes. It is also the only one of the two that will eventually give you stills and motion from one model, which matters if your pipeline currently runs FLUX.2 for frames and something else for movement.

Seedance 2.5, on what it shipped: fast, kinetic action with hard camera moves — the exact case early FLUX 3 testers say still favours Seedance — plus the two things FLUX 3 has no answer to: fifty reference assets in one request, and editing you address by timestamp after the clip exists. Thirty seconds extendable into minutes is also a longer canvas than FLUX 3 offers.

The number that matters

In Black Forest Labs' own preference evaluation, FLUX 3 beat Luma Ray 3.2 93% of the time and Runway Gen-4.5 77% — but landed at 52% against Seedance 2.0, the generation Seedance 2.5 has now replaced. BFL labels the chart a preliminary evaluation of an early pre-release checkpoint. Read it as: FLUX 3 arrives at parity with last year's Seedance, and 2.5 has not been measured by anyone.

What we test the day each one opens

The same prompt on both, sound on — our FLUX 3 prompt set and the Seedance 2.5 one-take set are already written for this.
Measured cost per finished clip, not list price — straight into the cost calculator.
The claims that are easiest to overstate: does FLUX 3 really hold 20 seconds, does Seedance 2.5 really hold 30, and does either survive a reference image.

What to actually use this month

Neither. If work is due, the shipping options are Veo 3.1, Seedance 2.0 and Kling 3.0 — see the current video model rankings and Seedance vs Kling. Plan around FLUX 3 if your work is dialogue and sound design; plan around Seedance 2.5 if it is action, references and unit cost.

Frequently asked questions

Can I use either FLUX 3 or Seedance 2.5 today?: Only if you are in China. FLUX 3 launched July 23 into gated early access with no public API and no pricing. Seedance 2.5 released July 31 and is live in Jimeng AI and Doubao Pro, but its Volcano Ark API is still 'coming soon' and no international endpoint exists. Anyone selling you API access to either right now is selling something else.
Which one is better?: Unknowable today — no one has run them head to head, and neither has entered a public arena. What's known points at different strengths: FLUX 3 generates audio jointly with the picture and reportedly handles dialogue-heavy scenes well, while the Seedance line leads on fast, kinetic action and multi-modal reference control. In BFL's own preference test, FLUX 3 scored 52% against Seedance 2.0 — a tie against the previous Seedance generation.
Which generates longer video?: Seedance 2.5, and by more than the headline: 30 seconds in a single generation against FLUX 3's 20, plus multi-round extension that carries subject, setting and pacing across rounds into several coherent minutes. FLUX 3 chains clips into multi-shot sequences instead.
Which will be cheaper?: Neither has published pricing. History favours ByteDance: the Seedance line has consistently priced well below Google's Veo family, while Black Forest Labs has never sold video by the second before. We publish measured per-clip costs for both within hours of their APIs opening.