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Black Forest Labs

FLUX 1.1 [pro] Ultra

VS
HiDream.ai (Vivago AI)

HiDream-I1 Full

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

👑 Editorial Verdict: FLUX 1.1 [pro] Ultra stands out as the superior choice over HiDream-I1 Full. It is more cost-effective (costing $0.0600 per image vs $N/A), generates images in a faster speed tier (fast), and supports a wider range of key feature strengths (like Realism, High Resolution, Prompt Adherence).

Model Specs

FLUX 1.1 [pro] Ultra

Pricing & Speed

Cost per Generation
$60.00per 1,000 images
Speed TierFaster
fast
Max Resolution4K

Model Strengths

✨ Realism✨ High Resolution✨ Prompt Adherence
Model Specs

HiDream-I1 Full

Pricing & Speed

Cost per Generation
Self Host
Speed Tier
slow
Max Resolution1K

Model Strengths

✨ Realism✨ Prompt Adherence
Read our data collection methodology

Frequently Asked Questions

HiDream-I1 Full is cheaper as it is open source and can be self-hosted, whereas FLUX 1.1 [pro] Ultra costs $0.0600 per image generation.

FLUX 1.1 [pro] Ultra is faster, operating in the fast speed tier compared to HiDream-I1 Full which is in the slow speed tier.

Both models share key strengths in: realism, prompt adherence. FLUX 1.1 [pro] Ultra specializes in: realism, high resolution, prompt adherence. HiDream-I1 Full specializes in: realism, prompt adherence.

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