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FLUX.1 Fill [pro] vs GPT Image 2

Comparing FLUX.1 Fill [pro] and GPT Image 2 across benchmarks, pricing, and capabilities.

Black Forest Labs · OpenAI · Updated for 2026

Which is better?

FLUX.1 Fill [pro] and GPT Image 2 trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

Based on current benchmark, pricing, and model metadata for 2026.

Choose FLUX.1 Fill [pro]

  • you are already invested in the Black Forest Labs ecosystem

Choose GPT Image 2

  • you want predictable pricing at $5.00/M input and $30.00/M output

At a glance

The differences that matter most.

Benchmark wins
Input price
— / M
$5.00 / M
Output price
— / M
$30.00 / M
Context window
2,000
Released
Apr 2026
License
Proprietary
Proprietary

Arena Performance

Human preference votes

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

FLUX.1 Fill [pro]

Proprietary

Closed source

GPT Image 2

Proprietary

Closed source

Release Timeline

When each model was launched

GPT Image 2 was released on 2026-04-21, while FLUX.1 Fill [pro]'s release date is not specified.

We can confirm GPT Image 2's release timeline, but cannot make a direct age comparison without FLUX.1 Fill [pro]'s release date.

FLUX.1 Fill [pro]

GPT Image 2

Apr 21, 2026

4 months ago

Provider Availability

FLUX.1 Fill [pro] is available from Fal. GPT Image 2 is available from OpenAI.

FLUX.1 Fill [pro]

fal logo
Fal

GPT Image 2

openai logo
OpenAI
Input Price:Input: $5.00/1MOutput Price:Output: $30.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against FLUX.1 Fill [pro] and GPT Image 2 side-by-side, then vote on the output you prefer.

FLUX.1 Fill [pro]
✓ Preferred
GPT Image 2
Open in Playground

FAQ

Common questions about FLUX.1 Fill [pro] vs GPT Image 2.

Which is better, FLUX.1 Fill [pro] or GPT Image 2?

FLUX.1 Fill [pro] (Black Forest Labs) and GPT Image 2 (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

What are the context window sizes for FLUX.1 Fill [pro] and GPT Image 2?

FLUX.1 Fill [pro] supports 2K tokens and GPT Image 2 supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between FLUX.1 Fill [pro] and GPT Image 2?

Key differences include multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

Who makes FLUX.1 Fill [pro] and GPT Image 2?

FLUX.1 Fill [pro] is developed by Black Forest Labs and GPT Image 2 is developed by OpenAI.