Compare

FLUX 3 Video vs Gemini 3.1 Pro

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
Gemini 3.1 Pro
google/gemini-3.1-pro
Provider
Black Forest Labs
Google
Family
FLUX
Gemini 3
Modality
video
text
Context window
1,000,000 tok
Max output
65,536 tok
Released
2026-08-04
2026-05-22
License
Open-weight
Proprietary
Input price
$2.00 /1M
Output price
$12.00 /1M
Cache read
$0.200 /1M
Per output second
$0.170 /sec
Tools
yes
Streaming
yes
Vision
yes
JSON mode
yes
Reasoning
yes
Prompt caching
yes
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
Gemini 3.1 Pro
google/gemini-3.1-pro
Full spec →

Google's most intelligent Gemini model with improved reasoning, a medium thinking level, and a 1M token context window.

Strengths
  • 2M-token context
  • Native video + audio input
  • Cheapest long-context reasoning
Use cases
Video understandingVery long-document RAGCodebase-scale reasoning

Benchmarks

FLUX 3 Video
Gemini 3.1 Pro
Long-Context
94.2
MMLU
89.6

Source: each provider's published benchmarks. Higher is better. Run an eval to compare on your own data.

Compare with another

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Gemini 3.1 Pro vs GPT-5.4
google/gemini-3.1-pro · openai/gpt-5.4
Gemini 3.1 Pro vs Claude Sonnet 4.6
google/gemini-3.1-pro · anthropic/claude-sonnet-4.6
Gemini 3.1 Pro vs Kimi-K2.7-Code
google/gemini-3.1-pro · moonshot/kimi-k2.7-code
Grok 4.6 vs Gemini 3.1 Pro
xai/grok-4.6 · google/gemini-3.1-pro
Grok 4.6 vs FLUX 3 Video
xai/grok-4.6 · black-forest-labs/flux-3-video
Claude Opus 5 vs Gemini 3.1 Pro
anthropic/claude-opus-5 · google/gemini-3.1-pro
Claude Opus 5 vs FLUX 3 Video
anthropic/claude-opus-5 · black-forest-labs/flux-3-video
Qwen3.8 Max vs Gemini 3.1 Pro
alibaba/qwen3.8-max · google/gemini-3.1-pro
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"}],
)

# Gemini 3.1 Pro
client.chat.completions.create(
    model="google/gemini-3.1-pro",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →