How much cheaper is GPT-5 Mini than GPT-4o?

GPT-5 Mini costs $0.25/M input and $2.00/M output. GPT-4o costs $2.50/M input and $10.00/M output. GPT-5 Mini is 90% cheaper on input and 80% cheaper on output. For a typical workload of 1M input + 500K output tokens/month, GPT-5 Mini costs $1.25 vs GPT-4o's $7.50 — saving you $6.25/month (83% savings).

Which has a larger context window: GPT-5 Mini or GPT-4o?

GPT-5 Mini has a 272K token context window, while GPT-4o has a 128K token context window. GPT-5 Mini offers 2.1x the context — a significant upgrade for long-context workloads.

Should I upgrade from GPT-4o to GPT-5 Mini?

For most use cases — yes. GPT-5 Mini is 83-90% cheaper with 2x the context window. It handles chatbots, content generation, and code assistance at a fraction of the cost. The main reason to stay on GPT-4o is if you rely on specific GPT-4o capabilities or need the established GPT-4o ecosystem.

Is GPT-5 Mini better than GPT-4o for coding?

GPT-5 Mini is a newer model with improved capabilities over GPT-4o. For coding tasks, GPT-5 Mini offers better performance at 90% lower input cost and 80% lower output cost. The larger 272K context window also helps with large codebases. Most developers should upgrade.