Qwen3.8 27B

reasoningapache-2.027B

Qwen3.8 27B is an open-weight general-purpose model with a 262k context window, hosted by Reka. It is served as an OpenAI-compatible passthrough with native tool calling and streaming.

Context
262K
Max output
262K
Input price
$0.2/1M tokens
Output price
$2.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Fine-tuning

Details

Model IDqwen3.8-27b
Provider Reka AI
Creator Qwen
Familyqwen3.8
Licenseapache-2.0
Statusactive
Typereasoning
Input modalitiestext, image
Output modalitiestext
Open weight—
Parameters27B
Architecture—
Context window262K tokens
Max input—
Max output262K tokens
Reasoning tokens—
Knowledge cutoff—
Release date—
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.reka.ai/v1/chat/completions

Pricing

Input
$0.2
Output
$2.5
Cache write
—
Cache read
$0.05
Batch in
—
Batch out
—

API

GET/v1/models/reka/qwen3.8-27b