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FLUX.1 Kontext [max]
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FLUX.1 Kontext [max] is a closed-weights image model from Black Forest Labs, released May 2025.
Model information sources
Score within the LMArena text-to-image comparison set only.
$ how it compares
The image models ranked either side of FLUX.1 Kontext [max], out of 197 with a score, then more from Black Forest Labs.
| # | model | score | where | ||
|---|---|---|---|---|---|
| 81 | FLUX.2 [klein] Base 9B | 55±4 | comparison only | ||
| 82 | FLUX.2 [klein] 9B | 55±2 | api $0.015/image +local | ||
| 83 | FLUX.1 Kontext [max] | 55±2 | api $0.080/image | ||
| 84 |  Reve Edit Fast | 55±4 | comparison only | ||
| 85 |  Qwen-Image | 54±1 | api $0.025/image +local | ||
| more from Black Forest Labs | |||||
| 32 | FLUX.2 [max] | 64±1 | api $0.070/image | ||
| 36 | FLUX.2 [pro] | 63±2 | api $0.030/image | ||
| 37 | FLUX.2 [flex] | 62±2 | api $0.050/image | ||
$ what it's good at
text to image▂▅▅▃▄▄█▃▁▂▁▁ #58 of 126 * · 71% of its score · 2 tests
Beats FLUX.2 [klein] 9B here, though they rank higher overall.
| test | result | vs the others in its run | counts |
|---|---|---|---|
| LMArena text-to-image | 1074.4 ✎ | ▂▂▃▄▇█▄▂▄▂·▂ beats 20/75 | 53% |
| GenExam (relaxed overall, GPT-5 judge) | 28.5% ✎ | ▆▆·▂▂····▂▂█ beats 5/13 | 18% |
image to image / editing▁▁·▃▂▃█▃▃▄▁▁ #48 of 62 * · 20% of its score · 1 test
Beats GPT Image 1 Mini here, though they rank higher overall. Trails GLM-Image, FLUX.2 [klein] 4B, Ideogram 3.0 here, though they rank lower overall.
| test | result | vs the others in its run | counts |
|---|---|---|---|
| Arena image edit | 1180.7 ✎ | ▂▁▁▂▆▇█▄▆▅▁▂ beats 8/53 | 20% |
other tests1 not in a task · 7.4% of its score
| test | result | vs the others in its run | counts |
|---|---|---|---|
| EdiVal multi-turn editing overall (EdiVal-O after turn 3) | 53.0% ✎ | ▂·▂▃·▂·▃▂·▃█ beats 8/14 | 7.4% |
$ where to run it
Through an API
api · $0.080/image · docs.bfl.ai ↗ · price sourceUSD per generated image, flat: BFL lists FLUX.1 Kontext [max] at $0.08 per image (8 credits at $0.01), for text-to-image and image editing alike. Product: BFL API. API model: flux-kontext-max. Settings: one image. Price basis: published per-image list rate. BFL's docs list FLUX.1 Kontext under "Legacy Models" / "FLUX.1 Models (Previous Generation)"; it is still sold and no end date is published. Currency: USD. Black Forest Labs official pricing page, observed 2026-09-26.
$ how the score was worked out · LMArena leaderboard dataset 73%, GenExam leaderboard (OpenGVLa… 18%, EdiVal-Agent: An Object-Centr… 7%
Each result implies a score on its own, after adjusting for how hard its test is and who ran it. The score is their weighted average, with a small pull toward the middle for thinly tested models. Each test's weight is its counts column above; here it's added up by who ran the tests. How it works
| source | results | share of the score |
|---|---|---|
 LMArena leaderboard dataset | 2 | 73% |
 GenExam leaderboard (OpenGVLab/GenExam README, relaxed score) | 1 | 18% |
 EdiVal-Agent: An Object-Centric Framework for Automated, Fine-Grained Evaluation of Multi-Turn Editing (arXiv:2509.13399v3) | 1 | 7% |
| prior · pull toward the middle | 1% | |
| weighted average | = 54.7 |
$ improve this page
Use a short GitHub form or edit the data through a pull request. Every number needs a source; here's which ones we can use.
data updated · sources and licences · json