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Gemini 2.5 Flash-Lite

VS
OpenAI

GPT-5.4 mini

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

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, GPT-5.4 mini is the premium intelligence choice, scoring 54.4% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Gemini 2.5 Flash-Lite is 9.6x cheaper to run and delivers 1.4x faster throughput. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Gemini 2.5 Flash-Lite offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GPT-5.4 mini fully justifies the cost.

Model Specs

Gemini 2.5 Flash-Lite

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)
62.5%

Cost & Performance

Cost (per 1M tokens)9.6x cheaper
$0.17Input: $0.10 | Output: $0.40
Speed1.4x faster
280 tps
Context WindowLarger
1M tokens
Model Specs

GPT-5.4 mini

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+)
54.4%
Reasoning (gpqa-diamond)Winner (+25.0%)
87.5%

Cost & Performance

Cost (per 1M tokens)
$1.69Input: $0.75 | Output: $4.50
Speed
201 tps
Context Window
400k tokens

Frequently Asked Questions

Gemini 2.5 Flash-Lite is cheaper than GPT-5.4 mini. Gemini 2.5 Flash-Lite has a blended cost of $0.17/1M tokens, which is about 9.6x cheaper than GPT-5.4 mini at $1.69/1M tokens.

Gemini 2.5 Flash-Lite is faster than GPT-5.4 mini. Gemini 2.5 Flash-Lite generates 280 tokens per second (tps) compared to GPT-5.4 mini which generates 201 tokens per second.

GPT-5.4 mini is better for coding tasks. It scores 54.4% on coding evaluations (swe-bench-pro) compared to Gemini 2.5 Flash-Lite which scores N/A.

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