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FLUX 3 Video vs Kimi K3

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 2 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

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FLUX 3 Video
black-forest-labs/flux-3-video
Kimi K3
moonshot/kimi-k3
Provider
Black Forest Labs
Moonshot
Family
FLUX
Modality
video
text
Context window
1,048,576 tok
Max output
32,768 tok
Released
2026-08-04
2026-07-16
License
Open-weight
Open-weight
Input price
$3.00 /1M
Output price
$15.00 /1M
Per output second
$0.170 /sec
Tools
yes
Streaming
yes
Vision
yes
JSON mode
yes
Reasoning
yes
Prompt caching
Batch API
Try it
View model →
Open in playground →
FLUX 3 Video
black-forest-labs/flux-3-video
Full spec →

FLUX 3 Video is Black Forest Labs' video generation model. It generates video from a text prompt (t2v), animates one or more reference images (i2v), or continues an existing clip (v2v), with synchronized audio, up to fhd resolution, and 5-20 second durations.

Strengths
  • Text-to-video generation
Use cases
PromosDemosStoryboards
Kimi K3
moonshot/kimi-k3
Full spec →

Kimi K3 is Moonshot's flagship 2.8 trillion-parameter model, built on Kimi Delta Attention (a hybrid linear attention mechanism) with Attention Residuals. It offers native visual understanding, always-on reasoning, and a 1M-token context window for long-horizon coding, knowledge work, and deep reasoning tasks.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows

Compare with another

Grok 4.6 vs Kimi K3
xai/grok-4.6 · moonshot/kimi-k3
Grok 4.6 vs FLUX 3 Video
xai/grok-4.6 · black-forest-labs/flux-3-video
Claude Opus 5 vs Kimi K3
anthropic/claude-opus-5 · moonshot/kimi-k3
Claude Opus 5 vs FLUX 3 Video
anthropic/claude-opus-5 · black-forest-labs/flux-3-video
Qwen3.8 Max vs Kimi K3
alibaba/qwen3.8-max · moonshot/kimi-k3
Qwen3.8 Max vs FLUX 3 Video
alibaba/qwen3.8-max · black-forest-labs/flux-3-video
DeepSeek V4 Pro vs Kimi K3
deepseek/deepseek-v4-pro · moonshot/kimi-k3
DeepSeek V4 Pro vs FLUX 3 Video
deepseek/deepseek-v4-pro · black-forest-labs/flux-3-video
Kimi K3 vs GPT-5.6 Sol
moonshot/kimi-k3 · openai/gpt-5.6-sol
SWITCH BETWEEN THEM

One key, all 2, one line different.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

# FLUX 3 Video
client.chat.completions.create(
    model="black-forest-labs/flux-3-video",
    messages=[{"role":"user","content":"hello"}],
)

# Kimi K3
client.chat.completions.create(
    model="moonshot/kimi-k3",
    messages=[{"role":"user","content":"hello"}],
)
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