o3 — pricing & specs
o3 is a balanced model from OpenAI, at capability tier 5 of 8. Live $/M-token pricing and specs from the Mintok catalog, as of 2026-10-23.
$/M-token pricing
as of 2026-10-23 · OpenAIWhat o3 costs in practice
At $8/M output tokens, o3 is the 10th-cheapest of 14 priced tier-5 models in the Mintok catalog — about 60% above the tier median of $5/M.
| Scenario | Est. cost |
|---|---|
| 1M input + 1M output tokens | $10.00 |
| A 10K-token request (8K in / 2K out) | $0.032 |
| 1,000 agent runs (~2K in / 500 out each) | $8.00 |
| 1M-token RAG chat session (900K cached in / 100K out) | $1.25 |
Estimated from list price (as of 2026-10-23) at the token mixes shown; your real cost depends on prompt/response length and cache hit-rate. Model your own volume →
Specifications
- Vendor
- OpenAI
- Family
- o3
- Capability tier
- 5 / 8
- Size class
- BALANCED
- Category
- GENERAL
- Parameters
- 200B total · 50B active (MoE)
- Context window
- 200,000 tokens
- Licensing
- Proprietary
Carbon footprint (modeled)
Modeled decode on a reference Cerebras Cerebras WSE-3 Turbo at 50% MBU, batch 32, global-avg grid. Compare all models & grids →
Alternatives at tier 5
Same capability tier, sorted by output price — the cheaper-capable options.
- GPT-5.6 LunaOpenAI$1.20/M out
- Qwen3.7 PlusAlibaba$1.28/M out
- Mistral Large 3Mistral$1.50/M out
- Grok 4.3xAI$2.50/M out
- Gemini 3 Flash PreviewGoogle$3/M out
- Kimi K2.6Moonshot$4/M out
FAQ
How much does o3 cost per token?
o3 costs $2 per million input tokens and $8 per million output tokens (cached input $0.50/M), via OpenAI, as of 2026-10-23.
Is o3 expensive?
At $8/M output tokens, o3 is the 10th-cheapest of 14 priced tier-5 models in the Mintok catalog — about 60% above the tier median of $5/M.
What does a typical request with o3 cost?
At list price, a 10K-token request (8K in / 2K out) with o3 costs about $0.032, and 1,000 agent runs (~2K in / 500 out each) about $8.00.
What is o3's context window?
o3 supports a 200,000-token context window.
What capability tier is o3?
o3 sits at capability tier 5 of 8 on the Mintok scale (BALANCED size class).
Is o3 open-source or proprietary?
o3 is a proprietary model from OpenAI, accessed via API.
Put o3 to work
Benchmark it on your prompts, or size a deployment and compare $/M-token against alternatives.
Pricing and specs are maintained by Mintok's catalog watchers from public sources. Not investment advice. Methodology.