GPT-5.4 vs o4-mini
Pricing, context window, and benchmark comparison · Last updated April 2026
o4-mini is cheaper than GPT-5.4 at $1.10/1M/1M vs $2.50/1M/1M input tokens — a 2.3x cost difference. GPT-5.4 scores higher on quality benchmarks (ELO 1420). Choose o4-mini for cost-sensitive workloads; choose GPT-5.4 for maximum quality.
Which is cheaper: GPT-5.4 or o4-mini?
o4-mini is the cheaper option at $1.10/1M per 1M input tokens, compared to $2.50/1M for GPT-5.4. That is a 2.3x cost difference on input tokens. Output pricing follows a similar pattern: GPT-5.4 charges $15.00/1M/1M vs $4.40/1M/1M for o4-mini.
Which has better quality: GPT-5.4 or o4-mini?
Based on LMSYS Chatbot Arena rankings, GPT-5.4 achieves a higher ELO score (1420 vs 1350), suggesting stronger performance on open-ended tasks. GPT-5.4 excels at openai flagship — top-tier reasoning, coding, and multimodal. o4-mini is known for cheapest reasoning model in the openai lineup.
Which should you choose: GPT-5.4 or o4-mini?
- → OpenAI flagship — top-tier reasoning, coding, and multimodal
- → Native computer use and tool search
- → 272K standard context (expandable to 1M)
- → 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 or o4-mini?
o4-mini is cheaper at $1.10/1M per 1M input tokens, making it 2.3x more affordable.
Which has better quality: GPT-5.4 or o4-mini?
GPT-5.4 scores higher on the LMSYS Chatbot Arena with an ELO of 1420, suggesting better overall quality for most tasks.
Which has a larger context window: GPT-5.4 or o4-mini?
GPT-5.4 has a larger context window at 272K tokens.
Should I choose GPT-5.4 or o4-mini?
Choose o4-mini if cost is the priority. Choose GPT-5.4 if benchmark quality is most important. Consider your specific use case: GPT-5.4 is best for coding and reasoning, while o4-mini excels at reasoning and coding.
Is GPT-5.4 or o4-mini open source?
GPT-5.4 is proprietary. o4-mini is proprietary.