Migrating from o3-pro to gpt-5.6-sol
What changes when you move from o3-pro to gpt-5.6-sol: input price −80%, output price −75%, context window 200,000 → 1,050,000 tokens.
- From
- o3-pro
- Status
- Deprecated
- Shutdown
- Dec 11, 2026
- Time left
- 48 days
- Status
- Active
- Shutdown
- none announced
- Time left
- —
Prices
USD per 1M tokens, standard tier| Type | o3-pro | gpt-5.6-sol | Change |
|---|---|---|---|
| Input | $20.00first seen October 1, 2026 · source | $4.00first seen October 1, 2026 · source | −80% |
| Cached input | Not published | $0.40first seen October 1, 2026 · source | — |
| Output | $80.00first seen October 1, 2026 · source | $20.00first seen October 1, 2026 · source | −75% |
At 1M input and 250K output tokens a month: $40.00 on o3-pro, $9.00 on gpt-5.6-sol (−77.5%).
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | o3-pro | gpt-5.6-sol | Change |
|---|---|---|---|
| Context window | 200,000 tokensin place when tracking began (October 7, 2026) · source | 1,050,000 tokensin place when tracking began (October 7, 2026) · source | +425% |
| Max output tokens | 100,000 tokensin place when tracking began (October 7, 2026) · source | 128,000 tokensin place when tracking began (October 7, 2026) · source | +28% |
Features and parameters
Compare modelsSame on both
- Structured outputs: supported on both.o3-pro: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
- Function calling: supported on both.o3-pro: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
- Batch API: supported on both.o3-pro: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
- Image input: supported on both.o3-pro: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
- Reasoning / thinking: supported on both.o3-pro: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
- Fine-tuning: not supported on both.o3-pro: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
Not published for o3-pro: Prompt caching, PDF input, Built-in web search, temperature parameter, top_p parameter, logprobs.
Not published for gpt-5.6-sol: PDF input, temperature parameter, top_p parameter, logprobs.
Free tier
o3-pro: no free tier listed
gpt-5.6-sol: 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
gpt-5.6-sol adds a free tier.
Aliases
All aliasesNo aliases point at o3-pro.
Aliases pointing at gpt-5.6-sol: gpt-daybreak-blue-latest (in place when tracking began on October 7, 2026 · source)
On cloud platforms
All platform dates| Model | Platform | Platform ID | Shutdown | Time left |
|---|---|---|---|---|
| gpt-5.6-sol | Amazon Bedrock | openai.gpt-5.6-sol | not before Jul 13, 2027Active | |
| gpt-5.6-sol | Microsoft Foundryversion 2026-07-09 | gpt-5.6-sol | Jan 11, 2028Active | 444 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
o3-protogpt-5.6-sol.
Time until shutdown
o3-proCounting to 7:00 pm ET on December 10, 2026, which is 00:00 UTC on December 11, 2026.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: o3-pro, gpt-5.6-sol.