GPT-5.4 nano vs o4-mini
Pricing, context window, and benchmark comparison · Last updated April 2026
GPT-5.4 nano is cheaper than o4-mini at $0.20/1M/1M vs $1.10/1M/1M input tokens — a 5.5x cost difference. o4-mini scores higher on quality benchmarks (ELO 1350). Choose GPT-5.4 nano for cost-sensitive workloads; choose o4-mini for maximum quality.
Which is cheaper: GPT-5.4 nano or o4-mini?
GPT-5.4 nano is the cheaper option at $0.20/1M per 1M input tokens, compared to $1.10/1M for o4-mini. That is a 5.5x cost difference on input tokens. Output pricing follows a similar pattern: GPT-5.4 nano charges $1.25/1M/1M vs $4.40/1M/1M for o4-mini.
Which has better quality: GPT-5.4 nano or o4-mini?
Based on LMSYS Chatbot Arena rankings, o4-mini achieves a higher ELO score (1350 vs 1280), suggesting stronger performance on open-ended tasks. GPT-5.4 nano excels at cheapest openai model — $0.20/1m input. o4-mini is known for cheapest reasoning model in the openai lineup.
Which should you choose: GPT-5.4 nano or o4-mini?
- → Cheapest OpenAI model — $0.20/1M input
- → Good at classification, routing, and extraction
- → 272K context window even at low price
- → Cheapest reasoning model in the OpenAI lineup
- → Strong performance on code and math for the price
- → 200K context window
Frequently Asked Questions
Which is cheaper: GPT-5.4 nano or o4-mini?
GPT-5.4 nano is cheaper at $0.20/1M per 1M input tokens, making it 5.5x more affordable.
Which has better quality: GPT-5.4 nano or o4-mini?
o4-mini scores higher on the LMSYS Chatbot Arena with an ELO of 1350, suggesting better overall quality for most tasks.
Which has a larger context window: GPT-5.4 nano or o4-mini?
GPT-5.4 nano has a larger context window at 272K tokens.
Should I choose GPT-5.4 nano or o4-mini?
Choose GPT-5.4 nano if cost is the priority. Choose o4-mini if benchmark quality is most important. Consider your specific use case: GPT-5.4 nano is best for low-cost and fast-response, while o4-mini excels at reasoning and coding.
Is GPT-5.4 nano or o4-mini open source?
GPT-5.4 nano is proprietary. o4-mini is proprietary.