# Qwen3.6 Flash

Qwen3.6 Flash is a text generation model from Qwen, available through the Impossibl API. Its published context window is 1,048,576 tokens. The advertised input rate is $0.25 per million input tokens. The advertised output rate is $1.50 per million output tokens. Additional pricing brackets apply when the input exceeds a published context threshold.

- Model identifier: ` qwen/qwen3.6-flash `
- Creator: Qwen
- Model type: Text generation
- Canonical model page: [Qwen3.6 Flash](<https://impossibl.com/qwen/qwen3.6-flash>)
- API availability: Listed as serving through Impossibl.
- Creator release date: 2026-04-16

## Capabilities and limits

- Context window: 1,048,576 tokens
- Maximum output tokens: Not published in the public catalog; this is separate from the context window.
- Inputs: text
- Outputs: text
- Tool calling: Not published

## API access

Use ` qwen/qwen3.6-flash ` as the model identifier through the Impossibl API.

Published API endpoints:

- ` /v1/chat/completions `

[API quickstart](<https://impossibl.com/docs/agent-quickstart>) · [Models and billing documentation](<https://impossibl.com/docs/models>)

## Published API prices

All rates are in USD. An unpublished rate is unknown, not zero. Workspace-specific pricing, taxes, balance-purchase fees, billing adjustments, and tool charges can affect the amount paid.

| Usage | Published base rate | Billing unit |
| --- | --- | --- |
| Input | $0.25 | per million input tokens |
| Output | $1.50 | per million output tokens |
| Cache read | $0.05 | per million cached input tokens |
| Cache write (default retention) | Not published | per million tokens |
| Cache write (one-hour retention) | Not published | per million tokens |
| Audio input | Not published | per million audio input tokens |

### Long-context pricing

Base rates apply through 262,144 total input tokens per request. If total input, including cached input, strictly exceeds a threshold, use the highest qualifying threshold. Its rates apply to the whole request, not only the tokens above the threshold.

All rates below are USD per million tokens. Unpublished tier cache rates remain unknown; do not substitute the base cache rate.

| Total input tokens per request | Input | Output | Cache read | Cache write (default retention) | Cache write (one-hour retention) |
| --- | --- | --- | --- | --- | --- |
| Over 262,144 | $1.00 | $4.00 | $0.20 | Not published | Not published |

## Availability and retirement

The model is listed as serving. No retirement is announced in the current public catalog.

## Frequently asked questions

### What is Qwen3.6 Flash?

Qwen3.6 Flash is a text-generation model from Qwen, available through the Impossibl API.

### How much does Qwen3.6 Flash cost?

Qwen3.6 Flash costs $0.25 per million input tokens and $1.50 per million output tokens through the Impossibl API. Cache reads cost $0.05 per million tokens. These base rates apply through 262,144 total input tokens per request. Above 262,144 input tokens, the long-context rates in the pricing table apply to the whole request. All rates are in USD.

### What is the context length of Qwen3.6 Flash?

Qwen3.6 Flash has a 1,048,576-token context window through the Impossibl API.

### What inputs and outputs does Qwen3.6 Flash support?

Qwen3.6 Flash accepts text as input. Qwen3.6 Flash returns text.

### How do I use Qwen3.6 Flash through an API?

Qwen3.6 Flash is available through the Impossibl API. Use qwen/qwen3.6-flash as the model identifier with /v1/chat/completions. The quickstart explains how to create an API key and send your first request.

### When was Qwen3.6 Flash released?

Qwen released Qwen3.6 Flash on April 16, 2026.

Sources: [Creator release announcement](<https://docs.qwencloud.com/changelog/models>)

## Sources and related links

Prices, limits, capabilities, endpoints, and availability come from the public Impossibl catalog. Creator documentation supplies descriptions and release dates where available; it does not override the published API offering.

- [Public Impossibl model catalog](<https://api.impossibl.com/v1/models>)
- [Full model directory as JSON](<https://impossibl.com/models.json>)
- [Qwen3.6 Flash: model details and pricing](<https://impossibl.com/qwen/qwen3.6-flash>)
- [Model directory](<https://impossibl.com/models>)