GPT Image 1.5 vs FLUX.2 [pro]
The #1 ranked model vs FLUX.2 Pro — OpenAI's newcomer challenges Black Forest Labs.
GPT Image 1.5 from OpenAI and FLUX.2 [pro] from Black Forest Labs represent two different approaches to AI image generation. OpenAI's #1 ranked image model with exceptional prompt adherence, photorealism, and text rendering. On the other side, production-grade image generation and editing at an affordable price point.
At 15 credits, GPT Image 1.5 costs 5 credits less than FLUX.2 [pro] (20 credits). The question is whether the extra cost of FLUX.2 [pro] translates into meaningfully better results for your use case. For highest quality generation, text rendering, photorealism, GPT Image 1.5 is hard to beat at its price point. But if you need production work, balanced quality and cost, FLUX.2 [pro] may justify the premium.
Updated March 2026
GPT Image 1.5 (15 credits) offers better value for everyday use, especially for highest quality generation. FLUX.2 [pro] (20 credits) is worth the premium when you need production work. Both are available on Melies — try each with a test prompt to see which fits your style.
GPT Image 1.5 vs FLUX.2 [pro]: Visual Output
Both generated with the same prompt and seed 42. Click to view full size.
GPT Image 1.5
FLUX.2 [pro]GPT Image 1.5 vs FLUX.2 [pro]: How They Compare
| GPT Image 1.5 | FLUX.2 [pro] | |
|---|---|---|
| Provider | OpenAI | Black Forest Labs |
| Released | Jan 2026 | Nov 2025 |
| Cost | 15 | 20 |
| Speed | Medium | Medium |
| Reference images | Up to 1 | |
| Editing | ||
| WebP output |
GPT Image 1.5 vs FLUX.2 [pro]: Cost Comparison
GPT Image 1.5 is 25% cheaper than FLUX.2 [pro]. Here's how credits add up at scale.
| Volume | GPT Image 1.5 | FLUX.2 [pro] |
|---|---|---|
| 10 images | 150 | 200 |
| 50 images | 750 | 1,000 |
| 100 images | 1,500 | 2,000 |
Strengths & Weaknesses
GPT Image 1.5
- + More affordable (15 vs 20 credits)
- + Highest quality generation
- + Supports 1 reference images
- + WebP output for smaller file sizes
- + #1 on all major image leaderboards
- - Higher price point relative to speed tier
FLUX.2 [pro]
- + Production work
- + Custom resolution up to 14142px
- + Safety tolerance 1–5
- + Image editing with reference URLs
- - More expensive (20 vs 15 credits)
- - No reference image support
- - No WebP output
GPT Image 1.5 vs FLUX.2 [pro]: Which to Pick?
On a tight budget
At 15 credits per image, GPT Image 1.5 gives you more generations for your plan. Good enough quality for most everyday use.
Maximum quality matters
FLUX.2 [pro] is worth the extra credits when the output needs to be perfect — portfolio pieces, client work, or final deliverables.
Character or style consistency
GPT Image 1.5 supports 1 reference images to keep subjects, styles, and characters consistent across generations.
GPT Image 1.5 vs FLUX.2 [pro]: FAQ
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