Migrating from gpt-image-1.5 to gpt-image-2.5-sunburst
What changes when you move from gpt-image-1.5 to gpt-image-2.5-sunburst: prices, limits, features and parameters, read from each company's own pages.
- From
- gpt-image-1.5
- Status
- Deprecated
- Shutdown
- Dec 1, 2026
- Time left
- 47 days
- Status
- Active
- Shutdown
- none announced
- Time left
- —
Prices
USD per 1M tokens, standard tierNeither model has published per-token prices.
Limits
TokensNeither company publishes a context window or output limit for these models.
Benchmarks
Same benchmark and source on both sides; settings named where they differ| Benchmark | gpt-image-1.5 | gpt-image-2.5-sunburst | Change |
|---|---|---|---|
| Arena Text to ImageArena, no setting (vs high fidelity). Ranges don't overlap. | 1237 ±3 | 1425 ±7 | +188 |
| Arena Image EditArena, no setting (vs high fidelity). Ranges don't overlap. | 1370 ±3 | 1524 ±5 | +154 |
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
- Batch API: supported on both.gpt-image-1.5: in place when tracking began (October 7, 2026) · source · gpt-image-2.5-sunburst: in place when tracking began (October 7, 2026) · source
- Fine-tuning: not supported on both.gpt-image-1.5: in place when tracking began (October 7, 2026) · source · gpt-image-2.5-sunburst: in place when tracking began (October 7, 2026) · source
Not published for gpt-image-1.5: Structured outputs, Function calling, Prompt caching, Image input, PDF input, Reasoning / thinking, Built-in web search, temperature parameter, top_p parameter, logprobs, Context window, Max output tokens.
Not published for gpt-image-2.5-sunburst: Structured outputs, Function calling, Prompt caching, Image input, PDF input, Reasoning / thinking, Built-in web search, temperature parameter, top_p parameter, logprobs, Context window, Max output tokens.
Aliases
All aliasesNo aliases point at either model.
On cloud platforms
All platform dates| Model | Platform | Platform ID | Shutdown | Time left |
|---|---|---|---|---|
| gpt-image-1.5 | Microsoft Foundryversion 2025-12-16 | gpt-image-1.5 | Dec 16, 2026Active | 62 days |
| gpt-image-2.5-sunburst | Microsoft Foundryversion 2026-09-09 | gpt-image-2.5-sunburst | Sep 9, 2027Active | 329 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
gpt-image-1.5togpt-image-2.5-sunburst.
Counting to 7:00 pm ET on November 30, 2026, which is 00:00 UTC on December 1, 2026.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: gpt-image-1.5, gpt-image-2.5-sunburst.