GPT-5.4 Nano by OpenAI — Pricing, Benchmarks & Real Outputs
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Compare GPT-5.4 Nano
Alternatives to GPT-5.4 Nano
GPT-5.4 Nano's competitors have been quietly putting in work.
GPT-5.4 Nano's competitors have been quietly putting in work.
GPT-5.4 Nano's competitors have been quietly putting in work.
GPT-5.4 Nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency use cases such as classification, data extraction, ranking, and sub-agent execution. The model prioritizes responsiveness and efficiency over deep reasoning, making it ideal for pipelines that require fast, reliable outputs at scale.
fromimport openai OpenAI
client = OpenAI(
"https://openrouter.ai/api/v1" base_url=,
"$OPENROUTER_API_KEY" api_key=,
)
response = client.chat.completions.create(
"openai/gpt-5.4-nano" model=,
"role""user""content""Hello!" messages=[{: , : }],
)
print(response.choices[0].message.content)Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.
Also on Azure AI Foundry
The scrappy junior dev who over-delivers on every ticket. Surprisingly verbose for its size, with genuine conversational energy. Engages with ethics seriously but uses metaphors and analogies to keep things grounded.
Surprisingly detailed for a nano model. Character voices have more personality and interplay than expected. Sentience dialogue is rigorous and well-structured with genuine philosophical back-and-forth. Comedy is observational with good escalation. Picks The Matrix, which signals aspirational sci-fi taste. Consistently over-delivers relative to its weight class, though occasionally rambles where brevity would serve better.
Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.
Unique words vs. total words. Higher = richer vocabulary.
Average words per sentence.
"Might", "perhaps", "arguably" per 100 words.
**Bold** markers per 1,000 characters.
Bullet and numbered list items per 1,000 characters.
Markdown headings per 1,000 characters.
Emoji per 1,000 characters.
"However", "moreover", "furthermore" per 100 words.
48 outputs from GPT-5.4 Nano
GPT-5.4 Nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency use cases such as classification, data extraction, ranking, and sub-agent execution. The model prioritizes responsiveness and efficiency over deep reasoning, making it ideal for pipelines that require fast, reliable outputs at scale.
fromimport openai OpenAI
client = OpenAI(
"https://openrouter.ai/api/v1" base_url=,
"$OPENROUTER_API_KEY" api_key=,
)
response = client.chat.completions.create(
"openai/gpt-5.4-nano" model=,
"role""user""content""Hello!" messages=[{: , : }],
)
print(response.choices[0].message.content)Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.
Also on Azure AI Foundry
The scrappy junior dev who over-delivers on every ticket. Surprisingly verbose for its size, with genuine conversational energy. Engages with ethics seriously but uses metaphors and analogies to keep things grounded.
Surprisingly detailed for a nano model. Character voices have more personality and interplay than expected. Sentience dialogue is rigorous and well-structured with genuine philosophical back-and-forth. Comedy is observational with good escalation. Picks The Matrix, which signals aspirational sci-fi taste. Consistently over-delivers relative to its weight class, though occasionally rambles where brevity would serve better.
Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.
Unique words vs. total words. Higher = richer vocabulary.
Average words per sentence.
"Might", "perhaps", "arguably" per 100 words.
**Bold** markers per 1,000 characters.
Bullet and numbered list items per 1,000 characters.
Markdown headings per 1,000 characters.
Emoji per 1,000 characters.
"However", "moreover", "furthermore" per 100 words.
48 outputs from GPT-5.4 Nano