// Alibaba (Qwen)
Qwen3.5-9B
A Alibaba (Qwen) model. 4 prices across 4 channels side by side, each with its source and check date – plus specs, licence, speed and benchmarks.
- Official in/out per 1M
- —
- Lowest (DeepInfra)
- $0.1 / $0.15
- Context
- 262K
- AA index
- 11.2
Prices checked 2026-10-22Official sources linked on every rowNo estimates
01Specs at a glance
Official values first; gaps filled from OpenRouter’s API where the vendor page is silent.
| Vendor | Alibaba (Qwen) |
|---|---|
| Context window | 262K (262,144 tokens) |
| Max output | 33K |
| Input | Text · Image · Video |
| Output | Text |
| Tool calling / JSON | Yes / Yes |
| Weights & licence | Open weights · Apache-2.0 · Hugging Face |
| Parameters | 9.7B (from weight files) |
| Released | Mar 10, 2026 |
| Model IDs | qwen3.5-9b · qwen/qwen3.5-9b |
02Prices on 4 channels
Per 1M tokens, in the currency each source publishes (1 USD = 6.7 CNY for the blended column). Sorted: official first, then cheapest.
| Channel | Source | Input | Output | Cache hit | Blended $ | Context | Notes |
|---|---|---|---|---|---|---|---|
| DeepInfra Inference platform (own price page) | Platform 10-10 | $0.1 | $0.15 | — | 0.113 | 262K | DeepInfra own pricing page |
| SiliconFlow · fp8 Via OpenRouter / provider listed there | OpenRouter 10-22 | $0.1 | $0.15 | — | 0.113 | 262K | SiliconFlow price as listed on OpenRouter (pass-through; quantization=fp8; discount field=0); not checked against SiliconFlow's own page |
| Parasail · bf16 Via OpenRouter / provider listed there | OpenRouter 10-22 | $0.1 | $0.25 | — | 0.138 | 262K | Parasail price as listed on OpenRouter (pass-through; quantization=bf16; discount field=0); not checked against Parasail's own page |
| Together Inference platform (own price page) | Platform 10-10 | $0.17 | $0.25 | — | 0.19 | 262K | Together AI own pricing page |
“Official” = vendor pricing page; “Platform” = the platform’s own pricing page; “OpenRouter” = price listed on OpenRouter, not checked on the platform’s site. Click a source tag to open the original page.
03Where you can use it
Derived only from the price sources above. Country restrictions are set by each vendor – check their terms before you sign up.
- Inference platform (own price page)
DeepInfra · Together - Via OpenRouter / provider listed there
SiliconFlow · Parasail - Self-host the open weights
GPU / VRAM sizing and build plans→ - Free option
Qwen3.5-9B→
04Performance
All results →Speed and AA index from Artificial Analysis public leaderboards (not our own tests); benchmark scores from our benchmark library, best result per benchmark.
- AA indexQwen3.5 9B (Reasoning)
- 11.2
- Output speed (median)
- 63 tok/s
- Time to first tokenQwen3.5 9B (Non-reasoning): 0.7s
- 1.87s
- AA index per $ (blended)
- 99.52
| Benchmark | Best score | Source | Date |
|---|---|---|---|
| GPQA Diamond | 78.9% | independent | 2026-08-27 |
| MMLU-Pro | 82.5% | vendor | 2026-03-11 |
| AIME (OTIS Mock AIME 2024–2025) | 61.7% | independent | 2026-08-27 |
| Terminal-Bench 2.0 | 9.2% | official | 2026-03-02 |
05Price changes we recorded
All price changes →From our daily re-checks of the sources above.
No price change recorded since we started tracking (2026-10-10).
06More from Alibaba (Qwen)
FAQ
How much does the Qwen3.5-9B API cost?
There is no official pay-as-you-go price in our data. The lowest listed price is $0.1 / $0.15 on DeepInfra.
What is the context window of Qwen3.5-9B?
262K tokens of context, up to 33K output tokens. Platforms may cap it lower – see the table.
Is Qwen3.5-9B open source?
Yes, the weights are published on Hugging Face (Qwen/Qwen3.5-9B). Licence: Apache-2.0.