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FLUX.2 Klein 4B
black-forest-labs·black-forest-labs/flux-2-klein-4b·GA·Open weights·flux series·Image gen·NEW
Image model for prompt-driven generation, editing, and visual design workflows
At a glance
Reference price$1.00 / $1.00 per 1M
Cache read — · NEAR AI Cloud
Lowest paid$1.00 / $1.00
NEAR AI Cloud Gateway
1 more $0 channels
Context128,000
⚠ Providers report 40,960–128,000; the table below is authoritative
Output limit128,000
Capabilities
ReasoningTool use? Structured output✓ TemperatureAttachments
⚠ Providers report capability flags inconsistently
Modalities
ImageText
Knowledge cutoff2025-06
Released / updated2026-01-14 / 2026-06-08
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 3 providers1 with public prices · 1 free
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Nvidia black-forest-labs/flux_2-klein-4b | First-party | Free | — | — | 40,960 ⚠ | 40,960 | ||
| NEAR AI Cloud black-forest-labs/FLUX.2-klein-4B | Gateway | $1.00 | $1.00 | — | — | 128,000 | 128,000 | |
| Vercel AI Gateway | Cloud | — | — | — | — | 0 ⚠ | 0 | hostTable.undisclosed |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1NEAR AI Cloud$250.00
1 more channels offer $0 (Nvidia); free tiers usually have rate limits and no SLA, excluded from ranking.
The cheapest paid channel is the only channel.
Related models
Flux 3same series—FLUX.2 [max]same series—FLUX.2 [klein] 9Bsame series—Qwen3-Next 80B-A3B Instructcheaper alternative$0.144 / $0.574Qwen3-Coder 30B-A3B Instructcheaper alternative$0.216 / $0.861Llama-3.1-8B-Instructcheaper alternative$0.15 / $0.45Qwen3 Coder Flashcheaper alternative$0.144 / $0.574
Price historyone sample accumulated per data sync
Input listOutput listMin blended