Model comparison

FLUX.2 Flex vs Gemini 3.8 Flash

Compare FLUX.2 Flex (Black Forest Labs) and Gemini 3.8 Flash (Google) by price, context, capabilities, and latency.

Estimate costAll comparisons

Which should you pick?

  • Price: FLUX.2 Flex is cheaper ($0.2 / image per image) vs Gemini 3.8 Flash ($0.75 / 1M tokens input / $3.75 / 1M tokens output).
  • Context: Gemini 3.8 Flash has the larger context window (1M tokens).
  • Gemini 3.8 Flash adds: Tool calling, JSON mode, Long context.

Side by side

FLUX.2 Flex vs Gemini 3.8 Flash — full comparison

Compare price, provider, context, capabilities, latency, and source basis.

ModelProviderInputOutputContextCapabilitiesBest forLatencyStatusSource
FLUX.2 Flexblack-forest-labs/FLUX.2-flexBlack Forest Labs$0.2 / image——
StreamingVision
image understanding, multimodal chat0-0msCatalogPlatform curated
Gemini 3.8 Flashgoogle/gemini-3.8-flashGoogle$0.75 / 1M tokens$3.75 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat0-0msCatalogPlatform curated

FAQ

FLUX.2 Flex vs Gemini 3.8 Flash FAQ

Is FLUX.2 Flex or Gemini 3.8 Flash cheaper?

FLUX.2 Flex is cheaper ($0.2 / image per image) vs Gemini 3.8 Flash ($0.75 / 1M tokens input / $3.75 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.

Which has a larger context window, FLUX.2 Flex or Gemini 3.8 Flash?

Gemini 3.8 Flash is larger (1M tokens) vs — tokens.

FLUX.2 Flex vs Gemini 3.8 Flash for Vision: which should I pick?

Both target Vision. Pick FLUX.2 Flex to optimize cost, or Gemini 3.8 Flash for the longer context window. Test both on real prompts before committing production traffic.

FLUX.2 Flex detailsGemini 3.8 Flash detailsPricing calculatorOpenAI-compatible quickstart

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