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Gemini 3.5 Flash-Lite vs Grok 4.5

At a glance

Google's high-efficiency model for focused subagent work and multi-agent workflows.

1.0M ctx$0.30/$2.50 per M

xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.

89500K ctx$2.00/$6.00 per M#6/92
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Reasoning
CI 86.2-90.3
CodingInsufficient data
Sources:Epoch ECI·Epoch AI·Provider·OpenRouter· as of 2026-07-10
Capability
CapabilityECI88.5
Reasoning & Knowledge
Graduate Science93.4%Factual Recall53.5%
Math
Competition Math97.8%
Agentic
Terminal Tasks83.3%
Specs
1.0M
Context
66K
Max output
Jul 2026
Released
500K
Context
16K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input85%$0.30/M tokens
Output58%$2.50/M tokens
Reasoning$2.50/M tokens
Cache read90%$0.03/M tokens
Cache write$0.08/M tokens
Image input$0.30/M tokens
Audio input$0.30/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input$2.00/M tokens
Output$6.00/M tokens
Cache read$0.30/M tokens
Web search64%$0.005/search
Chat with Gemini 3.5 Flash-LiteGo to model
Chat with Grok 4.5Go to model
Frequently Asked Questions: Gemini 3.5 Flash-Lite vs Grok 4.5▼

Which is better, Gemini 3.5 Flash-Lite or Grok 4.5?

▼

Both Gemini 3.5 Flash-Lite and Grok 4.5 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Gemini 3.5 Flash-Lite or Grok 4.5?

▼

Gemini 3.5 Flash-Lite has a lower blended cost. Gemini 3.5 Flash-Lite: $0.30 input / $2.50 output. Grok 4.5: $2.00 input / $6.00 output.

Which has a larger context window, Gemini 3.5 Flash-Lite or Grok 4.5?

▼

Gemini 3.5 Flash-Lite has a larger context window: Gemini 3.5 Flash-Lite supports 1M tokens vs Grok 4.5 at 500K tokens.

Do both Gemini 3.5 Flash-Lite and Grok 4.5 support vision?

▼

Yes, both Gemini 3.5 Flash-Lite and Grok 4.5 support vision/image input.

What are the key differences between Gemini 3.5 Flash-Lite and Grok 4.5?

▼

Key differences: Gemini 3.5 Flash-Lite is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Gemini 3.5 Flash-Lite and Grok 4.5 for free on idapt.app to see which performs better for your specific needs.

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