FLUX Video Upscale 4K Price Cut: $0.59 to $0.28 per Second, Checked

Prices for AI video tools move fast, and screenshots of them move faster. On October 15, 2026, posts from OpenRouter and the video platform Higgsfield said Black Forest Labs' FLUX Video Upscale now turns any video into 4K for $0.28 per second, down from $0.59, and that FLUX 3 Video supports native 2K and 4K output. This is a pricing change that affects anyone paying for video upscaling, so it is worth checking against sources that are not social posts.

Short version: the upscaler claim holds up arithmetically against OpenRouter's current listing and the August launch prices. The FLUX 3 Video 4K price does not match anything we could find. Details and method are below.

TL;DR: claimed versus verified

We could not open a Black Forest Labs announcement for the price change, and BFL's pricing page as we fetched it shows image, tool and licensing rates through an interactive calculator rather than a video upscaler table.

How we checked the upscaler price

Video upscaling is billed per megapixel-second: the number of pixels in an output frame, in millions, multiplied by the clip's seconds. A 4K frame at 3840 by 2160 is about 8.3 megapixels. Multiplying gives per-second prices:

The OpenRouter listing states: "FLUX Video Upscale costs from $0.035/megapixel-second at Precise to $0.05/megapixel-second at Creative," and describes a model that enlarges a source video by 1.5x to 3x while preserving duration. It was released on August 19, 2026. The AlphaSignal report on the launch lists Precise at $0.07 and Creative at $0.10 per megapixel-second, as relayed by a search summary.

So: the old 4K figure of $0.59 matches Precise at launch rates ($0.58, rounding), and the new $0.28 matches Precise at today's listing ($0.29). That is a halving of the Precise tier. The Creative tier, by the same listings, also fell from $0.10 to $0.05.

Two caveats. First, the OpenRouter price is the platform's price; other platforms set their own. A Hedra listing cited in search results quoted per-second rates in the same range, which suggests the market is pricing similarly but we did not verify them. Second, "4K" depends on exact output dimensions; a clip at 4096 by 2160 costs slightly more.

What about FLUX 3 Video at 4K?

This is the shakier half. The summary of BFL posts says FLUX 3 Video now supports native 2K and 4K and is priced at $0.41 per second. Our search of the OpenRouter listing shows FLUX 3 Video "from $0.17/second," with support for text-to-video, keyframes, video continuation and synchronized audio. A figure of $0.41 per second matches the 4K Creative upscale rate computed above, which hints that two products may have been conflated in a summary. It is also plausible that $0.17 is the base-resolution price and $0.41 a 4K tier, but we found no document saying so.

Until Black Forest Labs publishes a video price table, treat the $0.41 per second 4K figure as unconfirmed. For background on the model family, see our FLUX 3 launch coverage.

How does this fit with FLUX 3 Image Klein?

The same news cycle included the release of FLUX 3 Image Klein, a 5.6B open-weights image model meant to run on a single consumer GPU. Our Klein guide covers the 8GB-GPU angle. The summaries add that Klein produces 4K images, supports bounding box layout control, ships through Hugging Face with Diffusers modular pipelines, and has FP8r and NVFP4 quantized checkpoints. OpenRouter lists Klein from $0.008 per image, slightly below the $0.009 in the social posts, which is probably a rounding or tier difference.

For builders, the combination is a pipeline: generate cheaply with Klein, produce video with FLUX 3 Video or another model, and upscale the final clip rather than generating at 4K from the start.

What does the rest of the BFL lineup cost?

For context, here is what OpenRouter's listings showed for Black Forest Labs models when we checked. These are one reseller's rates, not BFL's own table.

Reading across the table, the upscaler is the only product billed per megapixel-second, which is why its per-second price depends so heavily on resolution. A 1080p clip is about 2.1 megapixels, so Precise at $0.035 is roughly $0.07 per second, while a 4K output costs about four times that. If your final delivery is 1080p, the headline 4K price is irrelevant to you.

Precise or Creative: which mode to pay for?

The listing describes two processing modes without defining them in detail. From the launch coverage we found, Precise stays closer to the source frames while Creative is allowed to regenerate more detail, which is why it costs more. A sensible way to choose is to test both on ten seconds of your own footage:

1. Run Precise first and compare faces, text and fine textures with the source.
2. Run Creative on the same clip and look for invented detail, flicker between frames, or changed identity.
3. Pick Precise unless the source is so soft that Creative's extra detail is the point.

Because Creative costs about 43 percent more per megapixel-second on today's listing, the test is cheap relative to a full-length upscale. Costs also scale with how long the queue makes you wait: OpenRouter's page shows a median end-to-end latency of roughly 566 seconds for the model, so plan batch jobs rather than interactive use.

Availability matters too. The same page reports 100 percent uptime but about 90 percent availability over three days, meaning requests reached the provider but some returned errors. For production pipelines, add retries.

Does a cheaper upscaler change what you should build?

Probably yes at the margin. A few practical comparisons:

• Generate low, upscale once. Generating at 720p or 1080p and upscaling a finished cut costs less than generating high-resolution drafts repeatedly.
• A 10-second clip. At about $0.29 per second, a 10-second 4K upscale on the Precise tier is roughly $2.90. At the launch rate it was roughly $5.80. At Creative, roughly $4.10 now versus $8.30.
• Compare against generation. Video generation prices vary widely; for context see how Grok Imagine Video 1.5 Lite is priced and the open Kandinsky 6 video model, which you can run yourself if you have the GPUs.
• Check your actual dimensions. Because billing scales with pixels, upscaling to 3x is much more expensive than 1.5x.

How to check price claims yourself

1. Open the provider's own model page and read the rate and its unit (per megapixel-second, per second, per clip).
2. Convert to the unit in the claim using your real resolution and duration.
3. Compare with an archived version or a launch report for the before price.
4. Treat "50 percent faster" or "50 percent cheaper" posts from a reseller as marketing until the vendor confirms.

We used the same approach for HeyGen's half-price voice model on OpenRouter, where a promotional discount was real but time-limited. OpenRouter's own page currently also shows a time-limited ElevenLabs offer, a reminder to check whether a rate is permanent.

What we could not confirm

• Whether BFL itself announced the cut, and when it took effect.
• Whether the Higgsfield claim of being over 50 percent faster refers to processing time or queue time.
• The FLUX 3 Video 4K rate.
• Whether the Creative-tier drop applies on BFL's own API as well as OpenRouter.

We will update this post if Black Forest Labs publishes a pricing table or changelog.

Related reading

• FLUX 3: Black Forest Labs unifies video, audio and robot action
• FLUX 3 Image Klein: open weights 5.6B guide
• Grok Imagine Video 1.5 Lite pricing
• Kandinsky 6 Video: open source 29B audio-video model
• HeyGen voice on OpenRouter: half price, claimed vs verified

Sources: OpenRouter FLUX Video Upscale listing, Black Forest Labs pricing, AlphaSignal launch report.

Prices are as listed on October 16, 2026 and change often.