Reported News
Pika releases Pika H3 Flex, an open-weights video model with synchronized audio in six sampling steps
Pika released Pika H3 Flex on October 29, 2026, an open-weights video model it says "ranks #1 among open-source text-to-video models". Post-trained from MiniMax H3, it generates video with synchronized stereo audio in six sampling steps and accepts up to 12 reference inputs.
- Changes reported
- 4
- listed below, each from a source we read
- We tested
- 0
- we did not run it ourselves
- Gaps we flag
- 2
- things we could not verify
- Sources
- 3
- 3 primary, linked below
What changed
| # | What the source says | Status |
|---|---|---|
| 01 | Pika H3 Flex is a post-trained version of MiniMax H3; the released weights are adapters distributed under the MiniMax H3 Community License. | Reported |
| 02 | It generates video with synchronized stereo audio in six sampling steps and accepts up to 12 reference inputs for shot direction. | Reported |
| 03 | Pika says a 15-second 768p clip with audio can take as little as seven seconds of transformer compute, and notes that is not the full request time. | Reported |
| 04 | Local inference runs at native 480p or 768p; Pika's hosted API adds 1080p, 2K and 4K, separate audio stems and prompt enhancement. | Reported |
reported by the sourcemeasured or run by usnot verified
Primary source: Pika blog: H3 Flex technical deep dive. We are the fast, independent index; the vendor’s own page is the source of record for this release.
In the source’s words
“an open-source omni video model family that ranks #1 among open-source text-to-video models”
“It builds on MiniMax-H3 and generates video with synchronized stereo audio in six sampling steps.”
What we have not verified
- The #1 ranking and the up-to-91% comparison are Pika's own evaluations; we did not run the model.
- Speed figures depend on hardware Pika did not fully specify in the quoted line.
This brief is Reported: written from the sources below, not from running the release ourselves.
Sources
- Pika blog: H3 Flex technical deep diveprimary source · fetched 2026-10-31
- Hugging Face model cardprimary source · fetched 2026-10-31
- Pika H3 Flex product pageprimary source · fetched 2026-10-31
Related
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