Which is cheaper for input tokens: OpenAI: o3 Pro or OpenAI: GPT-5 Pro?
OpenAI: GPT-5 Pro is cheaper on input token cost by $5.00 per 1M tokens.
Head-to-Head Pricing Benchmark
OpenAI: o3 Pro vs OpenAI: GPT-5 Pro
Side-by-side pricing and context window comparison for production model selection.
Input delta: $5.00Output delta: $40Monthly delta: $1,800
Default Recommendation (120M input + 60M output)
OpenAI: o3 Pro is lower-cost for the default monthly workload scenario.
Adjust the workload in the calculator below to see a live recommendation for your usage.
| Metric | OpenAI: o3 Pro | OpenAI: GPT-5 Pro |
|---|---|---|
| Developer | openai | openai |
| Context Window | 200,000 | 400,000 |
| Input Cost / 1M Tokens | $20.00 | $15.00 |
| Output Cost / 1M Tokens | $80.00 | $120.00 |
| Projected Monthly Cost | $7,200 | $9,000 |
| Vision | ✅ Yes | ✅ Yes |
| Tool Calling | ✅ Yes | ✅ Yes |
| Structured Output | ✅ Yes | ✅ Yes |
| Reasoning | ✅ Yes | ✅ Yes |
| MMLU Score | N/A | N/A |
Price History
OpenAI: o3 Pro Pricing Trend
Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7 — Mar 11
Current Input / 1M
$20.00
Current Output / 1M
$80.00
Price History
OpenAI: GPT-5 Pro Pricing Trend
Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7 — Mar 11
Current Input / 1M
$15.00
Current Output / 1M
$120.00
Cost Calculator
Adjust your workload to see projected monthly costs.
01.0B
0500M
OpenAI: o3 Pro
$7,200
per month
Lower costOpenAI: GPT-5 Pro
$9,000
per month
Live Recommendation
OpenAI: o3 Pro is lower-cost at 120M input + 60M output tokens/month.
OpenAI: o3 Pro saves $1,800/mo at this workload
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FAQ
Common questions for OpenAI: o3 Pro vs OpenAI: GPT-5 Pro pricing decisions.
Which is cheaper for output tokens: OpenAI: o3 Pro or OpenAI: GPT-5 Pro?
OpenAI: o3 Pro is cheaper or equal on output token cost by $40 per 1M tokens.
What is the projected monthly cost difference between OpenAI: o3 Pro and OpenAI: GPT-5 Pro?
$1,800 difference for the default scenario (120M input + 60M output tokens/month).
How should I choose between OpenAI: o3 Pro and OpenAI: GPT-5 Pro?
Use this page to compare context window and token pricing, then open each model page to evaluate additional alternatives and monthly workload fit.