Side-by-side · API pricing
o3 vs GPT-5.5 Pro
o3 and GPT-5.5 Pro pricing data is being verified. ModelPriceLab tracks both daily — sign up for alerts when either changes.
OpenAI · OpenAI · Verified daily.
Model B
GPT-5.5 Pro
OpenAI
- Input / 1M
- $30.00
- Output / 1M
- $180.00
- Context window
- —
- Platforms tracked
- 1
Per-platform pricing
Both models tracked across official and reseller platforms. Lowest input price wins on cost-sensitive workloads.
o3
- openrouter- / $8.00
GPT-5.5 Pro
- direct$30.00 / $180.00
Frequently asked questions
- Which is cheaper, o3 or GPT-5.5 Pro?
- o3 and GPT-5.5 Pro pricing data is being verified. ModelPriceLab tracks both daily — sign up for alerts when either changes.
- Where does this comparison data come from?
- ModelPriceLab crawls official vendor pricing pages and verified third-party platforms daily. Both o3 and GPT-5.5 Pro are tracked on the same schedule.
- Can I get notified when either price changes?
- Yes — Pro subscribers receive email alerts when input or output prices change for any tracked model.
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