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OpenAI

GPT-5 mini

VS
OpenAI

GPT-5.4 nano

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

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, GPT-5.4 nano is the premium intelligence choice, scoring 6.7% higher on coding benchmarks. It also maintains strong cost efficiency. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, GPT-5 mini offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GPT-5.4 nano fully justifies the cost.

Model Specs

GPT-5 mini

Benchmarks & Scores

Coding (swe-bench-pro)
45.7%
Reasoning (gpqa-diamond)Winner (+1.1%)
82.8%

Cost & Performance

Cost (per 1M tokens)
$0.69Input: $0.25 | Output: $2.00
Speed
86 tps
Context Window
400k tokens
Model Specs

GPT-5.4 nano

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+6.7%)
52.4%
Reasoning (gpqa-diamond)
81.7%

Cost & Performance

Cost (per 1M tokens)1.5x cheaper
$0.46Input: $0.20 | Output: $1.25
Speed2.2x faster
191 tps
Context Window
400k tokens
Read our data collection methodology

Frequently Asked Questions

GPT-5.4 nano is cheaper than GPT-5 mini. GPT-5.4 nano has a blended cost of $0.46/1M tokens, which is about 1.5x cheaper than GPT-5 mini at $0.69/1M tokens.

GPT-5.4 nano is faster than GPT-5 mini. GPT-5.4 nano generates 191 tokens per second (tps) compared to GPT-5 mini which generates 86 tokens per second.

GPT-5.4 nano is better for coding tasks. It scores 52.4% on coding evaluations (swe-bench-pro) compared to GPT-5 mini which scores 45.7%.

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