o3 Pro API pricing
OpenAI · Premium price tier · Proprietary · released 2025-06. Prices in USD per 1 million tokens. Data snapshot: 2026-11-12.
Deprecated. The model maker has announced retirement of this model's API · shutdown 2026-12-11 · suggested replacement: GPT-5.6 Sol Pro. It still carries a price because hosts still serve it; treat it as a model to migrate off, not one to start on.
A support ticket workload of 100K requests a month costs $7000.00 on o3 Pro; the next cheaper model in the Premium price tier for this workload, Claude Opus 4.1, does it for $6000.00. o3 Pro has held the same list price since 2026-08-15 and is the 26th cheapest of 30 models in the Premium price tier. Only one host, OpenAI, sells it, so there is no second price to shop. Its maker has announced its retirement, so it is a model to migrate off rather than start on.
- Input: $20.00 per 1M tokens
- Output: $80.00 per 1M tokens
- Batch API (in/out): Not published
- Prompt-cache read: Not published
- Context window: 200K tokens
- Arena ELO: Not published
Market position
On blended price ($62.00 per 1M tokens at 30% input, 70% output) it is cheaper than 14% of models in the Premium price tier: 26th cheapest of 30. Across every price tier it is cheaper than 1% of priced text models in the catalogue: 299th cheapest of 303.
Licence, size and capabilities
o3 Pro is recorded here as proprietary: access is through an API, priced by the token. Its parameter count is not published. Listed capabilities: Text, Vision, Reasoning, Agents. Filling its 200K context window once costs $4.00 in input tokens at list price.
Pricing by host
A host is a company that runs the model and sells it by the token: the model maker, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent host. One model, several hosts, and often several prices. This model is sold by 1 host. The price we quote elsewhere on this page is marked. We quote one host's rate so that models stay comparable; it is not a recommendation to buy there.
OpenAI is the only host with a published rate, $20.00 input / $80.00 output per 1M tokens, which is the price we quote.
| Host | Input $/1M | Output $/1M |
|---|---|---|
| OpenAI (model maker, price we quote) | $20.00 | $80.00 |
List prices as published on 2026-11-12, via OpenRouter. Negotiated rates, committed-use discounts and provisioned capacity are not shown.
Monthly cost at 100K requests, by business use case
From the after-discounts figure (prompt caching on the cached input share, batch API for async workloads, only where OpenAI publishes those rates), which assumes you implement both, to the list price. One figure means no discount is published.
| Use case | Tokens (in/out) | Monthly (after discounts – list) |
|---|---|---|
| Support Ticket | 1,500 / 500 | $7.0K |
| Knowledge Q&A | 2,000 / 800 | $10.4K |
| Meeting Summary | 10,000 / 1,200 | $29.6K |
| Marketing Content | 2,500 / 1,800 | $19.4K |
| Coding Task | 3,000 / 2,000 | $22.0K |
| Invoice Processing | 1,500 / 600 | $7.8K |
| Call Summary | 2,000 / 700 | $9.6K |
| Agent Workflow | 6,000 / 3,000 | $36.0K |
Price history
o3 Pro has been in our daily price archive since tracking began on 2026-08-15, when it listed at $20.00 input / $80.00 output per 1M tokens. No list price change since tracking began on 2026-08-15. Last checked against the 2026-11-12 snapshot.
Alternatives to o3 Pro
o3 Pro carries no Arena score, so this page cannot place it against models of comparable quality. The alternatives below are its nearest neighbours on price in the Premium price tier.
- Next cheaper model in the Premium price tier: Claude Opus 4.1 (Anthropic) at $57.00 blended, 8% less.
- Next more expensive: GPT-5 Pro (OpenAI) at $88.50 blended, 43% more.
Other models from OpenAI
The 8 nearest to o3 Pro in price, of 48 other OpenAI models in the catalogue. Prices per 1M tokens, input then output.
- GPT-5.6 Sol Pro: $4.00 / $20.00
- GPT-5.5: $5.00 / $30.00
- GPT-6 Astra: $10.00 / $50.00
- GPT-6 Astra Pro: $10.00 / $50.00
- GPT-5 Pro: $15.00 / $120.00
- GPT-5.2 Pro: $21.00 / $168.00
- GPT-5.4 Pro: $30.00 / $180.00
- GPT-5.5 Pro: $30.00 / $180.00
All 49 OpenAI models and prices
Common questions about o3 Pro pricing
- How much does o3 Pro cost?
- o3 Pro costs $20.00 per 1M input tokens and $80.00 per 1M output tokens. That is the model maker's own rate (OpenAI). Prices as listed on 2026-11-12.
- Which host is cheapest for o3 Pro?
- OpenAI is the only host with a published rate, $20.00 input / $80.00 output per 1M tokens, which is the price we quote. Host rates as listed on 2026-11-12.
- Does o3 Pro offer batch or cached pricing?
- No. Neither a batch rate nor a prompt-cache rate is published for o3 Pro as of 2026-11-12.
- What would o3 Pro cost per month?
- With the Support Ticket profile (1,500 input and 500 output tokens per request), 100,000 requests a month cost about $7.0K on o3 Pro at the list price quoted on 2026-11-12.
- Can o3 Pro be self-hosted?
- No, as far as this site records. o3 Pro is recorded here as proprietary: access is through an API, priced by the token.
- Has the price of o3 Pro changed?
- o3 Pro has been in our daily price archive since tracking began on 2026-08-15, when it listed at $20.00 input / $80.00 output per 1M tokens. No list price change since tracking began on 2026-08-15. Last checked against the 2026-11-12 snapshot.
It exposes a thinking budget, so its output volume is what the bill turns on: what thinking models charge for output.
These are list prices. Your real cost also depends on caching and batching, negotiated discounts, marketplace agreements, and the contracts you already have. OptimNow audits exactly that.
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