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GoogleGemini 3.1 Flash-LiteVSOpenAIGPT-5.4 Pro

Analysis by:the whichllmmodel Editorial Team|Updated: June 2026

Our Take

Standardized reasoning and coding benchmarks are currently pending verification for one or both of these models. We recommend testing Gemini 3.1 Flash-Lite and GPT-5.4 Pro directly in their respective provider playgrounds to see which fits your specific prompt styles best.
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Model Specs

Gemini 3.1 Flash-Lite

Benchmarks & Scores

Coding (live-code-bench)
72%

scripting single-file apps or clearly defined functions

Reasoning (gpqa-diamond)Winner (+14.6%)
82.2%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)
$0.56Input: $0.25 | Output: $1.50
Context WindowLarger
1.05M tokens
Model Specs

GPT-5.4 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A

complex codebases, multi-file repositories, and architectural planning

Reasoning (gpqa-diamond)
67.6%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)4.1x cheaper
$0.14Input: $0.05 | Output: $0.40
Context Window
400k tokens

Frequently Asked Questions about Gemini 3.1 Flash-Lite vs GPT-5.4 Pro

GPT-5.4 Pro is cheaper than Gemini 3.1 Flash-Lite. GPT-5.4 Pro has a blended cost of $0.14/1M tokens, which is about 4.1x cheaper than Gemini 3.1 Flash-Lite at $0.56/1M tokens.

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