Qwen3.5-2B

apache-2.0

Qwen3.5-2B is a compact yet capable model from Alibaba's Qwen3.5 series. It features a 262K token context window, support for 201 languages, thinking/reasoning mode, and tool calling for agentic workflows. A strong choice for prototyping, fine-tuning, and efficient multilingual deployments.

Context
262K
Input price
$0.02/1M tokens
Output price
$0.1/1M tokens

Capabilities

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

Details

Model IDQwen/Qwen3.5-2B
Provider DeepInfra
Familyqwen3
Licenseapache-2.0
Statusactive
Typechat
Input modalitiestext, image
Output modalitiestext
Open weightYes
Parameters—
Architecture—
Context window262K tokens
Max input—
Max output—
Reasoning tokensYes
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.deepinfra.com/v1/openai/v1/chat/completions

Pricing

Input
$0.02
Output
$0.1
Cache write
—
Cache read
—
Batch in
—
Batch out
—

Family Comparison: qwen3

ModelContextMax outPricing
Qwen3-Embedding-0.6B-batch———
Qwen3-Embedding-0.6B———
Qwen3-Embedding-4B-batch———
Qwen3-Embedding-4B———
Qwen3-Embedding-8B-batch———
Qwen3-Embedding-8B———
Qwen3-Reranker-0.6B———
Qwen3-Reranker-4B———
Qwen3-Reranker-8B———
Qwen3-TTS-VoiceDesign———
Qwen3-TTS———
Qwen3.5-0.8B262K—$0.01$0.05
Qwen3.5-2B262K—$0.02$0.1
Qwen3.5-4B262K—$0.03$0.15
Qwen3-32B41K—$0.08$0.28
Qwen3-235B-A22B-Instruct-2507262K—$0.09$0.55
Qwen3-Next-80B-A3B-Instruct262K—$0.09$1.1
Qwen3.6-35B-A3B262K—$0.1$0.95
Qwen3-14B41K—$0.12$0.24
Qwen3-30B-A3B41K—$0.12$0.5
Qwen3.5-35B-A3B262K—$0.14$1
Qwen3-VL-30B-A3B-Instruct262K—$0.15$0.6
Qwen3-VL-235B-A22B-Instruct262K—$0.2$0.88
Qwen3-235B-A22B-Thinking-2507262K—$0.23$2.3
Qwen3.5-27B262K—$0.26$2.6
Qwen3.5-122B-A10B262K—$0.29$2.4
Qwen3-Coder-480B-A35B-Instruct-Turbo262K—$0.3$1
Qwen3.5-397B-A17B262K—$0.45$3
Qwen3-Max-Thinking256K—$1.2$6
Qwen3-Max256K—$1.2$6

API

GET/v1/models/deepinfra/Qwen/Qwen3.5-2B

Qwen3.5-2B

Qwen/Qwen3.5-2B

Qwen3.5-2B is a compact yet capable model from Alibaba's Qwen3.5 series. It features a 262K token context window, support for 201 languages, thinking/reasoning mode, and tool calling for agentic workflows. A strong choice for prototyping, fine-tuning, and efficient multilingual deployments.

Changes · 3 entries
Qwen/Qwen3.5-2Bupdateca7a400Nov 2, 2026, 03:02 AM
quantizationfp8→bfloat16
Qwen/Qwen3.5-2Bupdate80c574aJun 3, 2026, 07:05 AM
quantizationfp8→bfloat16
Qwen/Qwen3.5-2Bcreate3e56cf1Apr 26, 2026, 07:23 PM