Quick Verdict
GPT Image 2.5, launched September 8, 2026, is a meaningful step up from Images 2.0 — not a ground-up reinvention, but a focused upgrade that delivers noticeably faster generation, more faithful reference-photo editing, and two API models designed for different use cases. Flare is the speed-first default; Sunburst trades latency for finer creative control.
The pricing stays flat: same per-token rates as the previous generation, which makes this an easy upgrade for anyone already using GPT Image through the API. On the product side, OpenAI also shipped four new ChatGPT-native tools alongside the model — Sketch, Templates, Image comments, and Prompt sharing — that make the in-product editing loop more useful than it's ever been.
This review is based on OpenAI's published launch specs, API documentation, and reporting from multiple sources including eesel.ai, CellCog, and Digital Applied. We'll add hands-on testing notes as we put both variants through longer workflows.
Early rating: 8.4/10 — a smart, no-friction upgrade with a clear Flare vs. Sunburst split that makes it easier to match the model to the job.
What Is GPT Image 2.5?
GPT Image 2.5 is OpenAI's updated image generation and editing model, replacing GPT Image 2.0. It runs inside ChatGPT (all paid tiers), ChatGPT Work, and Codex, and developers can call it directly via the Images API using two model strings: gpt-image-2.5-flare and gpt-image-2.5-sunburst.
The core improvements over Images 2.0 are speed, subject fidelity in edits, and more reliable long-conversation editing. OpenAI also added two new quality tiers above the existing "high" setting — which gives developers more granular control over the quality-cost tradeoff when calling the API at scale.
The split into two named API variants is the biggest structural change from the previous generation. Rather than one model with different quality flags, GPT Image 2.5 ships as two purpose-built options: Flare optimises for throughput and everyday creation, while Sunburst targets precision-heavy tasks where generation time is less of a concern.
GPT Image 2.5 Pricing
Both Flare and Sunburst use the same token-based pricing as the previous GPT Image model. OpenAI held rates steady across the upgrade, so the quality bump comes at no additional per-token cost.
| Token type | Price | Notes |
|---|---|---|
| Text input | $5.00 / 1M tokens | Applies to both Flare and Sunburst |
| Image input (reference photos) | $8.00 / 1M tokens | Charged when passing reference images to the model |
| Image output | $30.00 / 1M tokens | Charged per generated image; applies to both variants |
| ChatGPT / ChatGPT Work | Included in subscription | No extra charge; usage counts against your plan limits |
| Codex | Included in Codex plan | Available at launch alongside the API rollout |
Flare vs Sunburst: Which Variant Should You Use?
| Feature | Flare | Sunburst |
|---|---|---|
| Generation speed | Up to 50% faster than Images 2.0 | Slower — prioritises quality over speed |
| Best for | Quick iterations, high-volume workflows, everyday creation | Detailed creative work, precise editing, premium outputs |
| API model string | gpt-image-2.5-flare | gpt-image-2.5-sunburst |
| Quality vs. Images 2.0 | Comparable to GPT Image 2.0 at full quality | Higher — designed for finer-grained control |
Key Improvements Over GPT Image 2.0
- Up to 50% lower latency — Flare is meaningfully faster in high-volume or iterative workflows.
- Better subject preservation in edits — reference photos stay intact more reliably across multi-edit sessions.
- More reliable long-conversation editing — extended back-and-forth editing maintains consistency better.
- New quality tiers above 'high' — finer API control over quality-cost tradeoff at scale.
- Native transparent background support — generate without post-processing for product photos and overlay work.
Pros and Cons
| Pros | Cons |
|---|---|
| Same pricing as Images 2.0 — quality upgrade at no extra cost | Sunburst generation times not publicly benchmarked yet |
| Flare delivers up to 50% lower latency | New ChatGPT features are subscription-only, not available in raw API |
| Better subject fidelity in edits | Limited independent benchmarks at time of writing |
| Native transparent background output | Two-variant split adds a routing decision to prompt pipelines |
| Image comments and Sketch tools improve the ChatGPT editing loop | Locked to OpenAI infrastructure — no open-source equivalent |
Final Verdict
GPT Image 2.5 is a well-executed incremental upgrade — faster generation, more reliable edits, same pricing. For anyone already using GPT Image through the API, switching to gpt-image-2.5-flare is an easy call. Sunburst is worth evaluating once independent benchmarks establish its quality ceiling in practice.
Rating: 8.4/10
