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OpenAI o3
openai·openai/o3·GA·Closed·o series
O-series reasoning model for hard analysis, math, coding, and planning
At a glance
Reference price$2.00 / $8.00 per 1M
Cache read $0.50 · Helicone
Lowest paid$2.00 / $8.00
NanoGPT Gateway · 1× spread
Context200,000
Output limit100,000
Capabilities
✓ Reasoning✓ Tool useStructured outputTemperatureAttachments
⚠ Providers report capability flags inconsistently
Modalities
TextImage
Knowledge cutoff2024-05
Released / updated2025-04-16 / 2025-04-16
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 3 providers3 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| NanoGPT | Gateway | $2.00 | $8.00 | $1.00 | — | 200,000 | 100,000 | |
| DigitalOcean openai-o3 | Cloud | $2.00 | $8.00 | $0.50 | — | 200,000 | 100,000 | |
| Helicone | Gateway | $2.00 | $8.00 | $0.50 | — | 200,000 | 100,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1DigitalOcean$620.00
2Helicone$620.00
3NanoGPT$680.00
The cheapest paid channel is the only channel.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
effort = loweffort = mediumeffort = high
Related models
S2.1 Pro (Free)same series—S2.1 Prosame series—Arrow 1.1same series—GPT OSS 120Bcheaper alternative$1.00 / $4.20Kimi K2.6cheaper alternative$0.95 / $4.00DeepSeek V4 Procheaper alternative$0.435 / $0.87DeepSeek V4 Flashcheaper alternative$0.14 / $0.28
Price historyone sample accumulated per data sync
Input listOutput listMin blended