Migrating from o3 to gpt-5.6-sol
What changes when you move from o3 to gpt-5.6-sol: input price +100%, output price +150%, context window 200,000 → 1,050,000 tokens.
- From
- o3
- 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 | gpt-5.6-sol | Change |
|---|---|---|---|
| Input | $2.00first seen October 1, 2026 · source | $4.00first seen October 1, 2026 · source | +100% |
| Cached input | $0.50first seen October 1, 2026 · source | $0.40first seen October 1, 2026 · source | −20% |
| Output | $8.00first seen October 1, 2026 · source | $20.00first seen October 1, 2026 · source | +150% |
At 1M input and 250K output tokens a month: $4.00 on o3, $9.00 on gpt-5.6-sol (+125%).
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | o3 | 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% |
Benchmarks
Same benchmark and source on both sides; settings named where they differ| Benchmark | o3 | gpt-5.6-sol | Change |
|---|---|---|---|
| Arena SearchArena, xhigh effort (vs no setting). Ranges don't overlap. | 1196 ±7 | 1258 ±6 | +62 |
A score from one source is never compared with another source's, and company-reported scores are compared only within the same company; settings named where they differ. Data: Arena (arena.ai), CC BY 4.0.
Features and parameters
Compare modelsSame on both
- Structured outputs: supported on both.o3: 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: in place when tracking began (October 7, 2026) · source · gpt-5.6-sol: in place when tracking began (October 7, 2026) · source
- Prompt caching: supported on both.o3: 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: 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: 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: 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: 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: 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: 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.
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
o3togpt-5.6-sol. - Re-check costs: gpt-5.6-sol costs more than o3 (input +100%, output +150%).
Time until shutdown
o3Counting 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, gpt-5.6-sol.