FLUX.2 klein Base 4B FP8 vs Hy4 preview
At a Glance
| Compare |  FLUX.2 klein Base 4B FP8Black Forest Labs |  Hy4 previewTencent |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | Not reported | $0.834Openrouter ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | Not reported | $2.501Openrouter ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | Not reported | 1,000K |
| Model facts checked | Aug 28, 2026View model evidence → | Sep 2, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | FLUX.2-klein-base-4b-fp8 | Hy4 preview |
|---|---|---|
| Developer | Black Forest Labs | Tencent |
| Family | Flux 2 Klein Base 4b Fp8 | Hy4 |
| Model | FLUX.2-klein-base-4b-fp8 | Hy4 preview |
| Version | FLUX.2-klein-base-4b-fp8 | Hy4 preview |
| Lifecycle | active | preview |
| Released | 2026-01-15 | 2026-08-28 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Image | Text |
| Output modalities | Image | Text |
| Context window | Unknown | 1,000K |
| Total parameters | 4B | 770B |
| Active parameters | Unknown | 49B |
| License | apache-2.0 | apache-2.0 |
| Open weights | Yes | Yes |
| API available | Unknown | Yes |
| Self-hostable | Yes | Yes |
| Provider access | Unknown | Openrouter (Standard) |
| Capabilities | generation | chat, generation, reasoning, tools |
FLUX.2 klein Base 4B FP8 Capabilities
Hy4 preview Capabilities
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Primary Evidence
Sources and Freshness
Questions
FLUX.2 klein Base 4B FP8 vs Hy4 preview FAQs
Is FLUX.2 klein Base 4B FP8 or Hy4 preview better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both FLUX.2 klein Base 4B FP8 and Hy4 preview, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, FLUX.2 klein Base 4B FP8 or Hy4 preview?+
Only Hy4 preview has a directly sourced input price: $0.834 per million tokens. Only Hy4 preview has a directly sourced output price: $2.501 per million tokens.
Which has a larger context window, FLUX.2 klein Base 4B FP8 or Hy4 preview?+
Neither model has a larger sourced context window in this comparison. FLUX.2 klein Base 4B FP8 is — and Hy4 preview is 1,000K.
Which performs better in benchmarks, FLUX.2 klein Base 4B FP8 or Hy4 preview?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can FLUX.2 klein Base 4B FP8 or Hy4 preview be self-hosted?+
Both models have the same recorded self-hosting status: supported. FLUX.2 klein Base 4B FP8 is open weight; Hy4 preview is open weight.
Can FLUX.2 klein Base 4B FP8 and Hy4 preview understand images?+
FLUX.2 klein Base 4B FP8 is documented with image input; Hy4 preview is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, FLUX.2 klein Base 4B FP8 or Hy4 preview?+
Neither has a larger sourced maximum output. FLUX.2 klein Base 4B FP8 is — and Hy4 preview is —.
Do FLUX.2 klein Base 4B FP8 and Hy4 preview support reasoning and tool use?+
FLUX.2 klein Base 4B FP8: image input. Hy4 preview: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, FLUX.2 klein Base 4B FP8 or Hy4 preview?+
FLUX.2 klein Base 4B FP8 has 0 sourced provider routes; Hy4 preview has 1, so Hy4 preview has broader tracked availability.
Which offers better value, FLUX.2 klein Base 4B FP8 or Hy4 preview?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.