# FLUX.1 [dev] Usage, Cost & Rank | OpenCode Data

> FLUX.1 [dev] costs $0.00 per 1M input tokens and $0.00 per 1M output tokens.

Open-weight FLUX.1 text-to-image model for high-quality guidance-distilled generation

- Page: https://opencode.ai/data/black-forest-labs/flux-1-dev
- JSON: https://opencode.ai/data/black-forest-labs/flux-1-dev.json
- Model ID: black-forest-labs/flux-1-dev
- Lab: Black Forest Labs

## Model facts

| Fact | Value |
| --- | --- |
| Context window | 0 |
| Max output | 0 |
| Knowledge cutoff | - |
| Release date | 2024-08-01 |
| Input modalities | text |
| Output modalities | image |
| Reasoning | No |
| Tool calling | No |
| Open weights | Yes |
| Weights | [Hugging Face](https://huggingface.co/black-forest-labs/FLUX.1-dev) |

## Pricing: USD per 1M tokens

| Input | Output | Cached input | Cache write |
| --- | --- | --- | --- |
| $0.00 | $0.00 | - | - |

## Methodology

- Updates: Aggregated every hour. Days and weeks use UTC.
- Tokens: Input, output, reasoning, and cached tokens for each request.
- Users and sessions: Approximate counts of distinct users and OpenCode sessions.
- Cost: Session cost is the average cost per OpenCode session. Token prices are list prices from the OpenCode model catalog.
- Retention: The share of a model's users in one week who use it again the next week.
- Citation: Cite OpenCode Data (opencode.ai/data) with the update time shown at the top of the page.