Migrating from gpt-image-2.5-sunburst to gpt-image-2.6-sunburst

What changes when you move from gpt-image-2.5-sunburst to gpt-image-2.6-sunburst: prices, limits, features and parameters, read from each company's own pages.

From: gpt-image-2.5-sunburst
Status: Active
Shutdown: none announced
Time left: —

To: gpt-image-2.6-sunburst
Status: Active
Shutdown: none announced
Time left: —

Prices

USD per 1M tokens, standard tier

Neither model has published per-token prices.

Limits

Tokens

Neither 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-2.5-sunburst	gpt-image-2.6-sunburst	Change
Arena Text to ImageArena, medium effort (vs no setting).	1427 ±5	1409 ±13	−18 within range
Arena Image EditArena, medium effort (vs no setting). Ranges don't overlap.	1517 ±5	1476 ±10	−41

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 models

Batch API: supported on gpt-image-2.5-sunburst, not supported on gpt-image-2.6-sunburst.gpt-image-2.5-sunburst: in place when tracking began (October 7, 2026) · source · gpt-image-2.6-sunburst: first seen November 4, 2026 · source

Same on both

Fine-tuning: not supported on both.gpt-image-2.5-sunburst: in place when tracking began (October 7, 2026) · source · gpt-image-2.6-sunburst: first seen November 4, 2026 · source

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.

Not published for gpt-image-2.6-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 aliases

No aliases point at either model.

On cloud platforms

All platform dates

Model	Platform	Platform ID	Shutdown	Time left
gpt-image-2.5-sunburst	Microsoft Foundryversion 2026-09-09	gpt-image-2.5-sunburst	Sep 9, 2027Active	306 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-2.5-sunburst to gpt-image-2.6-sunburst.

Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: gpt-image-2.5-sunburst, gpt-image-2.6-sunburst.