Image Generation · 2026-05-07 · ModelsLab Team
Fluxgram v1.0 vs Flux.1 Schnell — API Comparison (2026)
Side-by-side comparison of Fluxgram v1.0 and Flux.1 Schnell via the API. Speed, quality, prompt adherence, and cost.
Two Flux-family checkpoints, two very different optimization targets.
Speed
| Model | Steps | Avg latency (512x768) |
|---|---|---|
| Fluxgram v1.0 | 30 | 8–12s |
| Flux.1 Schnell | 4 | 1.5–2.5s |
Schnell is ~5x faster but trades quality on fine detail.
Prompt adherence
Fluxgram is more literal on multi-subject prompts. Schnell is competitive for single-subject scenes.
When to use which
- Fluxgram v1.0 — portraiture, complex multi-subject scenes, long prompts.
- Flux.1 Schnell — bulk generation, real-time previews, draft passes.