Context Window

Compare

Qwen3.5 Plus 2026-02-15 vs Qwen3 Next 80B A3B Instruct

This page is context-first: how much text each model can take in one request. Full specs adds capabilities and limits; the pricing matrix below is only about $/million tokens from hosts that list both models.

Alibaba

Model

Qwen3.5 Plus 2026-02-15

Image inputTool calling

Context window

1M

1,000,000 tokens · ~750K words

Model page
Alibaba

Model

Qwen3 Next 80B A3B Instruct

Tool calling

Context window

262K

262,144 tokens · ~197K words

Model page

Context window · side by side

Bar length is relative to the larger of the two windows (100% = max of this pair). This is not pricing.

Qwen3.5 Plus 2026-02-151M
Qwen3 Next 80B A3B Instruct262K

Qwen3.5 Plus 2026-02-15 has about 3.8× the context window of the other in this pair.

Token calculator →Memory savings →

Qwen3.5 Plus 2026-02-15 has 281% more context capacity (1000K vs 262K tokens). Qwen3.5 Plus 2026-02-15 is 55% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Qwen3.5 Plus 2026-02-15. Its 1000K context fits entire documents without chunking (vs 262K).

  • RAG / high-volume retrieval

    Use Qwen3.5 Plus 2026-02-15. Input tokens are 55% cheaper — critical when sending large retrieved contexts.

Full specs

Context, output, capabilities, and dates. Green highlights the favorable value where we compute a winner.

SpecQwen3.5 Plus 2026-02-15Qwen3 Next 80B A3B Instruct
Context window1,000,000 tokens (1000K)262,144 tokens (262K)
Max output tokens65,536 tokens (65K)65,536 tokens (65K)
Speed tierBalancedFast
VisionYesNo
Function callingYesYes
Extended thinkingYesNo
Prompt cachingNoYes
Batch APINoNo
Release dateFeb 2026Sep 2025

Pricing matrix

Dollar rates only: hosts that list both models, per 1M tokens. For how much text fits, use the context section above — not this table.

ProviderQwen3.5 Plus 2026-02-15 inQwen3.5 Plus 2026-02-15 outQwen3 Next 80B A3B Instruct inQwen3 Next 80B A3B Instruct out
Alibaba Cloud——$0.150/M$1.20/M
Deepinfra——$0.140/M$1.40/M
Fireworks——$0.900/M$0.900/M
Novita——$0.150/M$1.50/M
Openrouter$0.400/M$2.40/M——
Together Ai——$0.150/M$1.50/M

Frequently asked questions

Qwen3.5 Plus 2026-02-15 has a larger context window: 1000K tokens vs 262K. For long documents, large codebases, or extended agent sessions, the larger context window reduces the need to chunk inputs or summarize history.

Powered by Mem0

Use a smaller model.
Get better results.

Mem0 gives your AI long-term memory so you stop re-sending context on every call. That means you can use a smaller, faster, cheaper model — and still get better answers.

Calculate your savingsLearn about Mem0

Example: a multi-turn chat session

Without Mem0~128K tokens sent
Full history
Repeated info
Old context
With Mem0~20K tokens sent
Key memories
Current turn

80% less to send — works with any model