o3 vs GPT-5.4 mini
Pricing, context window, and benchmark comparison · Last updated April 2026
GPT-5.4 mini is cheaper than o3 at $0.75/1M/1M vs $2.00/1M/1M input tokens — a 2.7x cost difference. o3 scores higher on quality benchmarks (ELO 1395). Choose GPT-5.4 mini for cost-sensitive workloads; choose o3 for maximum quality.
Which is cheaper: o3 or GPT-5.4 mini?
GPT-5.4 mini is the cheaper option at $0.75/1M per 1M input tokens, compared to $2.00/1M for o3. That is a 2.7x cost difference on input tokens. Output pricing follows a similar pattern: o3 charges $8.00/1M/1M vs $4.50/1M/1M for GPT-5.4 mini.
Which has better quality: o3 or GPT-5.4 mini?
Based on LMSYS Chatbot Arena rankings, o3 achieves a higher ELO score (1395 vs 1360), suggesting stronger performance on open-ended tasks. o3 excels at top-tier reasoning on math, science, and agentic tasks. GPT-5.4 mini is known for strong mid-tier quality close to gpt-5.4 at 1/3 the price.
Which should you choose: o3 or GPT-5.4 mini?
- → Top-tier reasoning on math, science, and agentic tasks
- → 87% cheaper than original o1 at the same capability tier
- → 200K context window
- → Strong mid-tier quality close to GPT-5.4 at 1/3 the price
- → Fast inference and low latency
- → Same 272K context window as flagship
Frequently Asked Questions
Which is cheaper: o3 or GPT-5.4 mini?
GPT-5.4 mini is cheaper at $0.75/1M per 1M input tokens, making it 2.7x more affordable.
Which has better quality: o3 or GPT-5.4 mini?
o3 scores higher on the LMSYS Chatbot Arena with an ELO of 1395, suggesting better overall quality for most tasks.
Which has a larger context window: o3 or GPT-5.4 mini?
GPT-5.4 mini has a larger context window at 272K tokens.
Should I choose o3 or GPT-5.4 mini?
Choose GPT-5.4 mini if cost is the priority. Choose o3 if benchmark quality is most important. Consider your specific use case: o3 is best for reasoning and math, while GPT-5.4 mini excels at customer-support and data-extraction.
Is o3 or GPT-5.4 mini open source?
o3 is proprietary. GPT-5.4 mini is proprietary.