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Merge Gateway

Qwen3.5 Flash API

Merge Gateway
About

Build advanced reasoning agents with Qwen3.5 Flash, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.03/1M input and $0.29/1M output tokens, native tool calling support. Access Qwen3.5 Flash via the Merge Gateway API with up to 250K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
1.0M

Tokens

Input Limit
1.0M

Tokens

Max Output
250K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.03
Output
$0.29

Caching (per 1M tokens)

Read
$0.0058
Frequently Asked Questions

Qwen3.5 Flash by Merge Gateway costs $0.03 per 1M input tokens and $0.29 per 1M output tokens. Cached reads cost $0.0058 per 1M tokens.

Model Details
ID
qwen/qwen3.5-flash
Provider
Merge Gateway
Family
qwen
Release Date
Feb 23, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
merge-gateway-ai-sdk-provider
Environment Variables
MERGE_GATEWAY_API_KEY
API Base URL
https://api-gateway.merge.dev/v1/ai-sdk
Documentation