Which is cheaper for input tokens: OpenAI: o3 or Google: Gemini 3.1 Pro Preview?
OpenAI: o3 is cheaper or equal on input token cost by $0.00 per 1M tokens.
Head-to-Head Pricing Benchmark
OpenAI: o3 vs Google: Gemini 3.1 Pro Preview
Side-by-side pricing and context window comparison for production model selection.
Input delta: $0.00Output delta: $4.00Monthly delta: $240
Default Recommendation (120M input + 60M output)
OpenAI: o3 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 | Google: Gemini 3.1 Pro Preview |
|---|---|---|
| Developer | openai | |
| Context Window | 200,000 | 1,048,576 |
| Input Cost / 1M Tokens | $2.00 | $2.00 |
| Output Cost / 1M Tokens | $8.00 | $12.00 |
| Projected Monthly Cost | $720 | $960 |
| Vision | ✅ Yes | ✅ Yes |
| Tool Calling | ✅ Yes | ✅ Yes |
| Structured Output | ✅ Yes | ✅ Yes |
| Reasoning | ✅ Yes | ✅ Yes |
| MMLU Score | 85.3 | N/A |
| GPQA | 82.7 | N/A |
Price History
OpenAI: o3 Pricing Trend
Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7 — Mar 11
Current Input / 1M
$2.00
Current Output / 1M
$8.00
Price History
Google: Gemini 3.1 Pro Preview Pricing Trend
Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7 — Mar 11
Current Input / 1M
$2.00
Current Output / 1M
$12.00
Cost Calculator
Adjust your workload to see projected monthly costs.
01.0B
0500M
OpenAI: o3
$720
per month
Lower costGoogle: Gemini 3.1 Pro Preview
$960
per month
Live Recommendation
OpenAI: o3 is lower-cost at 120M input + 60M output tokens/month.
OpenAI: o3 saves $240/mo at this workload
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FAQ
Common questions for OpenAI: o3 vs Google: Gemini 3.1 Pro Preview pricing decisions.
Which is cheaper for output tokens: OpenAI: o3 or Google: Gemini 3.1 Pro Preview?
OpenAI: o3 is cheaper or equal on output token cost by $4.00 per 1M tokens.
What is the projected monthly cost difference between OpenAI: o3 and Google: Gemini 3.1 Pro Preview?
$240 difference for the default scenario (120M input + 60M output tokens/month).
How should I choose between OpenAI: o3 and Google: Gemini 3.1 Pro Preview?
Use this page to compare context window and token pricing, then open each model page to evaluate additional alternatives and monthly workload fit.