Qwen3.5 Flash
API ID qwen3.5-flash
qwen3.5-flash is a Qwen model. It has a 1,000,000-token context window and up to 65,536 output tokens. It takes image input and supports function calling and structured outputs. Standard price: $0.10 input and $0.40 output per 1M tokens.
- Status
- Active
- Released
- —
- Shutdown
- none announced
- Replacement
- —
Qwen announces retirement dates without naming the models on a page AIWire can read. AIWire posts each new notice on the wire and will flag qwen3.5-flash if it disappears from Qwen's model list.
Benchmarks
Scores as each source published themNo comparison. Pick a model to see the difference on each benchmark.
Arena
| Arena | Qwen3.5 Flash | Rank | Date | Source |
|---|---|---|---|---|
TextBy category
| 1396 ±4 | 165 of 415 61,822 votes | Oct 13, 2026 | source |
| Text: Coding | 1436 ±6 | 172 of 410 17,724 votes | Oct 13, 2026 | source |
| WebDev | 1243 ±20 | 130 of 142 1,329 votes | Oct 13, 2026 | source |
Rated as qwen3.5-flash. Ratings come from people voting between two anonymous answers; Text is style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.
Epoch AI
| Benchmark | Qwen3.5 Flash | Setting | Run | Source |
|---|---|---|---|---|
FrontierMath Tiers 1-3Other settings
| 18.2% | no reasoning | Aug 28, 2026 | source |
| GPQA Diamond | 82.3% | Aug 7, 2026 | source | |
| OTIS Mock AIME 2024-2025 | 84.4% | Aug 7, 2026 | source | |
| SimpleQA Verified | 20.3% | Aug 27, 2026 | source |
Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.
Alias
All aliasesCurrently points to qwen3.5-flash-2026-02-23 (in place when tracking began (October 6, 2026)).
Features
Compare models| Feature | Value | Since | Source |
|---|---|---|---|
| Structured outputsThe model can be held to a JSON schema you supply, so every reply parses without retries or cleanup. | Supported | in place when tracking began (October 6, 2026) | source |
| Function callingAlso called tool use. You describe functions; the model replies with a function name and arguments for your code to run, then uses the result. | Supported | in place when tracking began (October 6, 2026) | source |
| Prompt cachingA prompt prefix you send again and again (system prompt, documents, tools) is cached, so later requests cost less and start faster. | Supported | in place when tracking began (October 6, 2026) | source |
| Batch APISend many requests as one job that runs in the background, usually finished within 24 hours, at a lower price than live requests. | Not supported (supported in the Beijing region only) | first seen October 8, 2026 | source |
| Image inputImages such as screenshots, photos and charts can go in the prompt for the model to read. | Supported | in place when tracking began (October 6, 2026) | source |
| Fine-tuningYou can train your own version of the model on your examples through the company's API, then call it like any other model. | Not supported | in place when tracking began (October 6, 2026) | source |
| Built-in web searchThe company's API can search the web for the model during a request and cite its sources; you don't need a search service of your own. | Supported | in place when tracking began (October 6, 2026) | source |
| Context windowThe most the model can work with in one request, in tokens: your prompt, conversation history and files. A token is about three-quarters of an English word. | 1,000,000 tokens | in place when tracking began (October 6, 2026) | source |
| Max output tokensThe longest reply the model can write in one response, in tokens. A token is about three-quarters of an English word. | 65,536 tokens | in place when tracking began (October 6, 2026) | source |
Not published by Qwen: PDF input, Reasoning / thinking, temperature parameter, top_p parameter, logprobs.
Price history
USD per 1M tokens, standard tierWe started recording this model's prices on Oct 5, 2026. The history grows with each daily check.
Show as a table
| From | Type | Price |
|---|---|---|
| Oct 5, 2026 | Input | $0.10 |
| Oct 5, 2026 | Output | $0.40 |
Prices
USD per 1M tokens, every type and band, by tier| Type | Price $/1M | In effect |
|---|---|---|
| Standard | ||
| input | $0.10 | |
| cache write | $0.125 | |
| output | $0.40 | |
Changelog
Changes we detected on Qwen's pages- Feature changed
qwen3.5-flash: Batch API not supported → not supported (supported in the Beijing region only)
Info
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Last checked · Sources: Qwen models, Qwen deprecations, Qwen free terms