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Core.Today
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Alibaba QwenFastHigh

Qwen3.8 27B

Qwen3.8 27B served through the OpenRouter aggregator - an open-weight dense vision-language model for coding, professional workflows, research, multimodal interaction, and long-running agent tasks, with flexible thinking mode and a 256K-token context. Billed at OpenRouter's actual usage cost.

836/5,946credits
input / output ยท per 1M tokens
Open-weight 27B dense vision-language model
256K-token context window with up to 131K output tokens
Multimodal input (text, image, video) with flexible thinking mode
OpenAI-compatible API (chat completions) via /llm/openrouter/v1
Billed at OpenRouter's actual usage.cost - listed rates are estimates

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Model Specifications

Context Window
262K
tokens
Max Output
131K
tokens
Training Cutoff
Not published
Compatible SDK
OpenAI

Capabilities

Vision
Function Calling
Streaming
JSON Mode
System Prompt

Token Pricing (per 1M tokens)

Token TypeCreditsUSD Equivalent
Input Tokens836$0.56
Output Tokens5,946$3.96

* 1,500 credits โ‰ˆ $1 (actual charges may vary based on usage)

Quick Start

curl -X POST "https://api.core.today/llm/openrouter/v1/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "qwen/qwen3.8-27b",
  "messages": [
    {
      "role": "user",
      "content": "Summarize the attached report in 5 bullets."
    }
  ],
  "max_tokens": 1024
}'

Parameters

ParameterTypeRequiredDefaultDescription
modelstringYes-Model ID in vendor/model form, e.g. "qwen/qwen3.8-27b".
messagesarrayYes-Chat messages in OpenAI format (system/user/assistant roles).
temperaturenumberNo0.7Sampling temperature (0-2).
max_tokensintegerNo2048Maximum completion tokens.
streambooleanNofalseStream the response as server-sent events.

Examples

Chat completion

OpenAI-compatible chat completion request via OpenRouter

curl -X POST "https://api.core.today/llm/openrouter/v1/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "qwen/qwen3.8-27b",
  "messages": [
    {
      "role": "user",
      "content": "Summarize the attached report in 5 bullets."
    }
  ],
  "max_tokens": 1024
}'

Tips & Best Practices

1Works with the OpenAI SDK - set base_url to https://ai.api.core.today/llm/openrouter/v1
2Charged at OpenRouter's usage.cost x 1,858 credits/USD - the listed rates are estimates and may lag OpenRouter price changes
3Output tokens cost several times more than input - keep max_tokens tight for short answers, and use the reasoning parameter only when the task benefits from thinking mode

Use Cases

Coding assistants and professional document workflows
Multimodal chat over images and video
Long-running agent tasks with tool use