OpenAI GPT-5.4 API Pricing in April 2026
OpenAI's current pricing stack is now much clearer than the speculative model list many comparison sites still show. As of April 22, 2026, the live API pricing page positions GPT-5.4 as the flagship, with GPT-5.4 mini and GPT-5.4 nano as the lower-cost companions.
The pricing snapshot
- GPT-5.4: $2.50 input / $15.00 output per 1M tokens
- GPT-5.4 mini: $0.75 input / $4.50 output per 1M tokens
- GPT-5.4 nano: $0.20 input / $1.25 output per 1M tokens
- GPT-4.1: $2.00 input / $8.00 output per 1M tokens
- GPT-4.1 mini: $0.40 input / $1.60 output per 1M tokens
- GPT-4o: $2.50 input / $10.00 output per 1M tokens
- GPT-4o mini: $0.15 input / $0.60 output per 1M tokens
What changed strategically
The important shift is not just that GPT-5.4 exists. The bigger product story is that OpenAI now gives teams a more explicit ladder:
- GPT-5.4 for premium reasoning and agentic workloads.
- GPT-5.4 mini for teams that want newer model quality but still need a production-friendly cost base.
- GPT-5.4 nano for routing, extraction, and lightweight background jobs.
That makes model routing much easier. Instead of choosing between only one expensive flagship and one or two legacy fallback models, builders can now keep more work inside the same family.
Where GPT-5.4 fits in real budgets
For many teams, GPT-4.1 still looks like the cleaner default when you want strong coding quality without paying GPT-5.4 output pricing. GPT-5.4 becomes easier to justify when one of these is true:
- The task is high stakes and wrong answers are expensive.
- You care more about output quality than blended token spend.
- You can route only a small percentage of traffic into the flagship tier.
If those are not true, GPT-4.1 or GPT-4o often remains the more defensible budget decision.
Product takeaway
The actionable move is not "upgrade everything to GPT-5.4." The smarter move is to rebuild your routing logic so low-value traffic lands on mini or nano, while only hard requests hit GPT-5.4.
Source
- OpenAI API Pricing: https://openai.com/api/pricing