Flux 3 vs MiniMax H3: Same $0.26/s, Different Product
Key Takeaways
- As of August 10, 2026, black-forest-labs/flux-3-t2v, -i2v, minimax/minimax-h3-t2v and -i2v all bill $0.260 per second — a 15-second clip costs $3.90 on any of the four.
- The rate is the same; the product is not. H3 outputs 2K, above Flux 3's 1080p ceiling, plus a reference-driven endpoint. Flux 3 runs to 20 seconds in one call and exposes two switches H3 lacks: audio_enable and safety_tolerance.
- Neither is an adult-content endpoint. Flux 3's safety_tolerance is a request parameter with a documented range, not a documented set of outcomes.
The Price Is Identical. The Products Are Not.
Both bill a genuinely flat per-second rate — rarer than pricing pages suggest. Neither console table carries a Resolution column: Flux 3 charges $0.260 per second at both 720p and 1080p. Rebuilt from that single rate, both conversion tables reproduce the published figures character for character across 54 data points.At 15 seconds both land on $3.90. Past that point the comparison is no longer about price.
What $0.26 Per Second Actually Buys
Flux 3 | MiniMax H3 | |
Rate | $0.260/s | $0.260/s |
size | 720p or 1080p, same price | 2k only |
duration, one call | 5–20 whole seconds | 5–15 whole seconds |
15 seconds | $3.90 | $3.90 |
20 seconds | $5.20 | not in a single call |
aspect_ratio | 8 values (7 ratios plus auto), both endpoints | 6 values on t2v; i2v takes none |
Audio | native, with an audio_enable toggle | native stereo, no request-level toggle |
safety_tolerance | integer, 0–4 | not present |
Reference-driven | no ref2v endpoint | minimax/minimax-h3-ref2v |
Neither column is the budget option. H3 spends the rate on pixels: its 2k tier sits above anything Flux 3 outputs, and omni-reference takes images, video and audio in one call. Flux 3 spends it on length and control — five more seconds, an audio track you can switch off, a moderation parameter per request.
Two rows mislead easily. Both models generate sound natively; Flux 3 just lets a request turn it off. And ref2v taking audio as a reference input is not generating it — its rate moves with reference volume rather than resolution, broken down in AI Video Model Pricing 2026.
Moderation: One Exposes a Dial, One Does Not
Flux 3 takes a safety_tolerance integer. On both flux-3-t2v and flux-3-i2v the accepted range is 0 to 4, described in the API reference as "Safety tolerance level, higher values allow more permissive content."
That is all the endpoint documents — a range, not a mapping from values to outcomes, and this article does not supply one. It is not even consistent inside the Flux family: flux-1.1-pro and -ultra accept 0 to 6, the four Kontext editing endpoints none.
H3 has no counterpart. Every request field on minimax-h3-t2v, -i2v and -ref2v is prompt, duration, size, aspect_ratio or a reference array — nothing that adjusts moderation. H3 moderates lightly for a general-purpose model, but lightly is not the same as not at all. For endpoints built for explicit work and what they cost, see MiniMax H3 NSFW.
Self-hosting is not the escape hatch on either side, for opposite reasons: FLUX 3 Video shipped as early access with private weights, so no local route exists, while H3's public weights carry a Community License that prohibits bypassing built-in guardrails — making the rebuilds in circulation a licensing problem, not a shortcut. See MiniMax H3 Uncensored Versions.
Which One to Reach For
- 2K output — H3. Flux 3 stops at 1080p.
- Over 15 seconds in one call — Flux 3, to 20 seconds at $5.20.
- Reference images, clips or voice — minimax-h3-ref2v; Flux 3 has no equivalent.
- Per-request control of the moderation parameter — only Flux 3 exposes one.
One Siray API key reaches both, so switching changes a model string, not an integration. More on H3: MiniMax H3 (Hailuo 3.0). A pairing where the rates are not equal: Seedance and H3 rates side by side.
FAQ
Is Flux 3 cheaper than MiniMax H3?
No. Both bill $0.260 per second, and 15 seconds costs $3.90 on either. The difference is what the second buys, not what it costs.
Does Flux 3 allow NSFW content?
Flux 3 is not an adult-content endpoint. It accepts a safety_tolerance integer from 0 to 4, documented as "higher values allow more permissive content" — a range, not a promise about any specific output.
Can MiniMax H3 generate a 20-second clip?
Not in one call. Its duration accepts 5 to 15 whole seconds; Flux 3 accepts 5 to 20 and charges $5.20 for the full 20.
Summary
One price, two bets: H3 sells resolution and reference control, Flux 3 sells length, an audio switch and a moderation parameter. At $0.26 either way, the constraint you already have decides it.
Get Started
Create your free Siray account and call both with the same key — run them against your own prompts before committing budget.
Compliance: Siray refuses all illegal content and enforces zero tolerance for CSAM. Every endpoint above is intended for lawful adult content involving consenting adults only, and never for a real person's likeness without documented consent. "Uncensored" and "Spicy" mean no excess filtering within the law — not the absence of it.