GPT-5 vs GPT-5 Mini
OpenAI's premium model vs its budget sibling — GPT-5 Mini is 80% cheaper on both input and output, with the same 272K context window.
Pricing data verified: Jun 21, 2026
| Specification | GPT-5 | GPT-5 Mini |
|---|---|---|
| Input Price (per 1M tokens) | $1.25 | $0.25 |
| Output Price (per 1M tokens) | $10.00 | $2.00 |
| Context Window | 272K tokens | 272K tokens |
| Tier | Premium | Budget |
| Provider | OpenAI | OpenAI |
| Input Savings | Baseline | 80% cheaper |
| Output Savings | Baseline | 80% cheaper |
| Cost at 1M input + 500K output | $6.25 | $1.25 |
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Which Model for Which Use Case?
High-Volume Production
For chatbots, content pipelines, and API services handling thousands of daily requests, GPT-5 Mini delivers solid quality at 20% of the cost. At 10K requests/day, you save $150/month vs GPT-5.
Complex Reasoning Tasks
GPT-5's premium reasoning excels at multi-step analysis, code generation, and tasks requiring deep understanding. When quality matters more than cost, GPT-5 is the clear choice.
Startup MVP / Prototyping
Building an MVP? Start with GPT-5 Mini to keep costs low while validating your product. The 80% savings lets you iterate faster without burning through your budget.
Enterprise Cost Optimization
At 1M requests/month, GPT-5 Mini saves $6,000/year compared to GPT-5. For enterprise deployments, the 80% cost difference translates to significant annual savings.
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Frequently Asked Questions
Is GPT-5 Mini cheaper than GPT-5?
Yes, significantly. GPT-5 Mini costs $0.25/M input and $2.00/M output. GPT-5 costs $1.25/M input and $10.00/M output. GPT-5 Mini is 80% cheaper on both input and output. For a typical workload of 1M input + 500K output tokens/month, GPT-5 Mini costs $1.25 vs GPT-5's $6.25 — saving $5.00/month (80%).
When should I choose GPT-5 over GPT-5 Mini?
Choose GPT-5 when: (1) you need the highest quality reasoning and instruction following, (2) your tasks require complex multi-step analysis, (3) cost is less important than output quality. Choose GPT-5 Mini when: (1) you want 80% cost savings, (2) same 272K context window meets your needs, (3) your tasks are well-defined and don't require premium reasoning.
Do GPT-5 and GPT-5 Mini have the same context window?
Yes, both GPT-5 and GPT-5 Mini offer a 272K token context window. The main difference is in reasoning capability and output quality, not context size. GPT-5 delivers premium reasoning for complex tasks, while GPT-5 Mini provides solid performance at 20% of the cost.
How much can I save by switching from GPT-5 to GPT-5 Mini?
You save 80% on both input and output tokens. At 500 requests/day with 1,500 input and 800 output tokens each, GPT-5 costs $28.13/month vs GPT-5 Mini's $5.63/month — saving $22.50/month ($270/year). For high-volume workloads, savings scale linearly.