Gemini 2.5 Flash Lite vs Grok 4.1 Fast: Pricing Comparison

Compare pricing, capabilities, and costs for your LLM workloads.

Google

Gemini 2.5 Flash Lite

Pricing (per 1M tokens)

Input$0.1000
Output$0.4000
Cached Input$0.0100
Batch Input$0.0500
Batch Output$0.2000

Context & Output

Context Window1M tokens
Max Output65.5K tokens

Capabilities

Categorybudget
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes

xAI

Grok 4.1 Fast

Pricing (per 1M tokens)

Input$0.2000
Output$0.5000
Cached Input$0.0500

Context & Output

Context Window2M tokens
Max Output16K tokens

Capabilities

Categorymid
Multimodaltext + image
Fine-tuningNo
StreamingYes

Quick Verdict

Cheaper Input Price

Gemini 2.5 Flash Lite

50.0% cheaper

Cheaper Output Price

Gemini 2.5 Flash Lite

20.0% cheaper

Larger Context Window

Grok 4.1 Fast

+1M tokens

Cost Comparison

Sample workload: 1,000,000 input tokens + 1,000,000 output tokens

Gemini 2.5 Flash Lite

$0.5000

$0.1000/1M input + $0.4000/1M output

Grok 4.1 Fast

$0.7000

$0.2000/1M input + $0.5000/1M output

Gemini 2.5 Flash Lite is 28.6% cheaper for this workload.

Frequently Asked Questions

Which is cheaper, Gemini 2.5 Flash Lite or Grok 4.1 Fast?
For input tokens, Gemini 2.5 Flash Lite is cheaper at $0.1000 per 1M tokens. For output tokens, Gemini 2.5 Flash Lite is cheaper at $0.4000 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Gemini 2.5 Flash Lite vs Grok 4.1 Fast?
Gemini 2.5 Flash Lite has a context window of 1M tokens, while Grok 4.1 Fast has 2M tokens. Grok 4.1 Fast supports a larger context window of 2M tokens, which is beneficial for processing longer documents.

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