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qwen3.5-plus API pricing & access
qwen3.5-plus API pricing: Dynamic usage-based pricing. Alibaba Qwen general-purpose LLM — strong at reasoning, coding and tool calling, with mult…
qwen3.5-plus API access
Alibaba Qwen general-purpose LLM — strong at reasoning, coding and tool calling, with multimodal input and an ultra-long context window.
Compare supported API endpoints and capabilities, then access qwen3.5-plus through the unified API gateway.
- Category
- text
- Context length
- 262144 tokens
- Supported APIs
- OpenAI Chat Completions API, Anthropic Messages API
- API endpoints
- POST /v1/chat/completions, POST /v1/messages
- Input modalities
- text, image
- Output modalities
- text
- Capabilities
- function calling, reasoning, vision
qwen3.5-plus API pricing
- Billing model
- Dynamic usage-based pricing
The final API price depends on the matched usage tier, request parameters and access group. Open the live pricing page for the current calculation.
About qwen3.5-plus
Qwen3.5 Plus is relevant to complex document organization, coding assistance and multi-step questions. Existing applications can retain it as a migration baseline for tool loops and answers after long inputs.
Use fixed cases for the tasks described above. Integration follows the listed endpoint, selected route parameters and current group pricing; official capabilities do not establish acceptance for every channel. Compare qwen3.7-flash.
Official reference 1, checked 2026-10-14.
Use cases and prompting
- Start with a minimal text request at the listed endpoint, retaining the exact model name.
- State goals, context and output format; leave room for the final answer after long inputs.
- Validate route-specific thinking or JSON parameters, then check both schema and task correctness.
- Compare fixed cases using completion quality, latency, usage and current group pricing; retain request IDs.
How to call qwen3.5-plus
qwen3.5-plus is served through tbuy's unified gateway. Existing OpenAI or Anthropic SDK code keeps working: point base_url at https://modelsok.com and use your tbuy API key.
curl (OpenAI-compatible)
curl https://modelsok.com/v1/chat/completions \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "qwen3.5-plus", "messages": [{"role": "user", "content": "Hello"}]}'Python (openai SDK)
from openai import OpenAI
client = OpenAI(base_url="https://modelsok.com/v1", api_key="YOUR_API_KEY")
response = client.chat.completions.create(
model="qwen3.5-plus",
messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)Python (anthropic SDK)
from anthropic import Anthropic
client = Anthropic(base_url="https://modelsok.com", api_key="YOUR_API_KEY")
message = client.messages.create(
model="qwen3.5-plus",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}],
)
print(message.content[0].text)Related pages
Frequently asked questions about qwen3.5-plus
What is qwen3.5-plus?
Alibaba Qwen general-purpose LLM — strong at reasoning, coding and tool calling, with multimodal input and an ultra-long context window.
How do I call qwen3.5-plus?
Create an API key with access to qwen3.5-plus, then use the exact model ID and a supported endpoint from the API access section. Request fields depend on the selected endpoint.
How is qwen3.5-plus priced?
Pricing depends on the selected provider group and the model billing unit. Refer to the current input, output, request, or media prices in the pricing section.
What is the context window of qwen3.5-plus?
The model catalog lists a context window of 262144 tokens. Check the selected endpoint for request limits.
How should I evaluate qwen3.5-plus for my project?
Start with the use cases and prompting guidance on this page, then evaluate the model with representative inputs from your project.