Model comparison

Gemini 3.5 Flash vs Grok 4.3

Compare Gemini 3.5 Flash (Google) and Grok 4.3 (X Ai) by price, context, capabilities, and latency.

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Price deadline

Gemini Flash prices rise Jan 1, 2027

Per Google's published pricing page, Gemini Flash input prices double on Jan 1, 2027. The same workload runs an order of magnitude cheaper on DeepSeek and GLM. Source: Google pricing Full price breakdown

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Which should you pick?

  • Price: Grok 4.3 is cheaper ($1.25 / 1M tokens input / $2.50 / 1M tokens output) vs Gemini 3.5 Flash ($1.50 / 1M tokens input / $9 / 1M tokens output).

Side by side

Gemini 3.5 Flash vs Grok 4.3 — full comparison

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

ModelProviderInputOutputContextCapabilitiesBest forLatencyStatusSource
Gemini 3.5 Flashgoogle/gemini-3.5-flashGoogle$1.50 / 1M tokens$9 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat0-0msCatalogPlatform curated
Grok 4.3x-ai/grok-4.3X AiStarting at $1.25 / 1M tokens$2.50 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat2127-3708msCatalogPlatform curated

FAQ

Gemini 3.5 Flash vs Grok 4.3 FAQ

Is Gemini 3.5 Flash or Grok 4.3 cheaper?

Grok 4.3 is cheaper ($1.25 / 1M tokens input / $2.50 / 1M tokens output) vs Gemini 3.5 Flash ($1.50 / 1M tokens input / $9 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.

Which has a larger context window, Gemini 3.5 Flash or Grok 4.3?

Both offer the same context window: 1M tokens.

Gemini 3.5 Flash vs Grok 4.3 for Vision: which should I pick?

Both target Vision. Pick Grok 4.3 to optimize cost, or Gemini 3.5 Flash for the longer context window. Test both on real prompts before committing production traffic.

Gemini 3.5 Flash detailsGrok 4.3 detailsPricing calculatorOpenAI-compatible quickstart