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Gemini 2.5 Flash-Lite

VS
OpenAI

GPT-5.4 Pro

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

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, GPT-5.4 Pro is the premium intelligence choice, scoring 0.0% higher on coding benchmarks. However, Gemini 2.5 Flash-Lite compensates by delivering 2.0x 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 Pro 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)
$0.17Input: $0.10 | Output: $0.40
Speed2.0x faster
280 tps
Context WindowLarger
1M tokens
Model Specs

GPT-5.4 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)Winner (+5.1%)
67.6%

Cost & Performance

Cost (per 1M tokens)1.3x cheaper
$0.14Input: $0.05 | Output: $0.40
Speed
137 tps
Context Window
400k tokens
Read our data collection methodology

Frequently Asked Questions

GPT-5.4 Pro is cheaper than Gemini 2.5 Flash-Lite. GPT-5.4 Pro has a blended cost of $0.14/1M tokens, which is about 1.3x cheaper than Gemini 2.5 Flash-Lite at $0.17/1M tokens.

Gemini 2.5 Flash-Lite is faster than GPT-5.4 Pro. Gemini 2.5 Flash-Lite generates 280 tokens per second (tps) compared to GPT-5.4 Pro which generates 137 tokens per second.

Coding benchmark scores are not currently recorded for these models.

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