Migrating from o1-2024-12-17 to o3
What changes when you move from o1-2024-12-17 to o3: input price −86.7%, output price −86.7%.
- From
- o1-2024-12-17
- Status
- Deprecated
- Shutdown
- Oct 23, 2026
- Time left
- 8 days
- To
- o3
- Status
- Active
- Shutdown
- none announced
- Time left
- —
Prices
USD per 1M tokens, standard tier| Type | o1-2024-12-17 | o3 | Change |
|---|---|---|---|
| Input | $15.00first seen October 1, 2026 · source | $2.00first seen October 1, 2026 · source | −86.7% |
| Cached input | $7.50first seen October 1, 2026 · source | $0.50first seen October 1, 2026 · source | −93.3% |
| Output | $60.00first seen October 1, 2026 · source | $8.00first seen October 1, 2026 · source | −86.7% |
At 1M input and 250K output tokens a month: $30.00 on o1-2024-12-17, $4.00 on o3 (−86.7%).
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | o1-2024-12-17 | o3 | Change |
|---|---|---|---|
| Context window | 200,000 tokensin place when tracking began (October 7, 2026) · source | 200,000 tokensin place when tracking began (October 7, 2026) · source | 0% |
| Max output tokens | 100,000 tokensin place when tracking began (October 7, 2026) · source | 100,000 tokensin place when tracking began (October 7, 2026) · source | 0% |
Features and parameters
Compare modelsSame on both
- Structured outputs: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · o3: in place when tracking began (October 7, 2026) · source
- Function calling: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · o3: in place when tracking began (October 7, 2026) · source
- Batch API: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · o3: in place when tracking began (October 7, 2026) · source
- Image input: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · o3: in place when tracking began (October 7, 2026) · source
- Reasoning / thinking: supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · o3: in place when tracking began (October 7, 2026) · source
- Fine-tuning: not supported on both.o1-2024-12-17: in place when tracking began (October 7, 2026) · source · o3: in place when tracking began (October 7, 2026) · source
Not published for o1-2024-12-17: Prompt caching, PDF input, Built-in web search, temperature parameter, top_p parameter, logprobs.
Not published for o3: PDF input, Built-in web search, temperature parameter, top_p parameter, logprobs.
Free tier
o1-2024-12-17: Free for shared data, 1M tokens a day for Launch and Grow (250K for Build), in place when tracking began (October 12, 2026) (source) · All free models
o3: no free tier listed
Free access is lost: o3 has no free tier listed.
Aliases
All aliasesAliases pointing at o1-2024-12-17: o1 (in place when tracking began (October 7, 2026) · source)
No aliases point at o3.
On cloud platforms
All platform dates| Model | Platform | Platform ID | Shutdown | Time left |
|---|---|---|---|---|
| o1-2024-12-17 | Microsoft Foundryversion 2024-12-17 | o1 | Nov 19, 2026Deprecated | 35 days |
Read daily from each platform's own pages. The status above uses each company's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.
Checklist
- Change the model string from
o1-2024-12-17too3.
Counting to 8:00 pm ET on October 22, 2026, which is 00:00 UTC on October 23, 2026.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: o1-2024-12-17, o3.