MODEL COMPARE

Qwen Plus 0728 vs Qwen3.5 Plus 2026-04-20: Pricing, Capabilities and Benchmarks

Compare Qwen Plus 0728 and Qwen3.5 Plus 2026-04-20 across context window, API pricing, modalities, tool use and recommended use cases.

Verified

Model AModel B

DECISION SUMMARY

Decision summary

Recommendations are conditional. Unknown values never count as a loss, and missing comparable benchmarks produce no winner.

Insufficient data

Evidence

comparable_coding_benchmark_missing

No same-source coding benchmark is attached to both model versions.

Insufficient data

Evidence

comparable_agent_benchmark_missing

Capabilities are listed, but a comparable agent benchmark is missing.

Tie

Evidence

context_window_larger

Qwen Plus 0728=1000000; Qwen3.5 Plus 2026-04-20=1000000

Qwen Plus 0728

Evidence

same_provider_monthly_cost_lower

Qwen Plus 0728=0.41600000000000004; Qwen3.5 Plus 2026-04-20=0.66; input=1000000; cached_input=0; output=200000; provider=OpenRouter

Insufficient data

Evidence

open_weights_support

Qwen Plus 0728=unknown; Qwen3.5 Plus 2026-04-20=unknown

MODEL ATTRIBUTES

Source scope: Provider endpoint

Show differences only

Attribute	Qwen Plus 0728	Qwen3.5 Plus 2026-04-20	Winner
Context window`context_window_larger`Provider endpoint	1M	1M	Tie
Maximum output`max_output_larger`Provider endpoint	33K	66K	Qwen3.5 Plus 2026-04-20
Input modalities`input_modalities_differ`Provider endpoint	Text	Text, Image, Video	Insufficient data
Output modalities`output_modalities_differ`Provider endpoint	Text	Text	Insufficient data
Tool calling`tool_calling_support`Provider endpoint	Supported	Supported	Tie
Structured output`structured_output_support`Provider endpoint	Supported	Supported	Tie
Reasoning`reasoning_support`Model	Supported	Supported	Insufficient data
Open weights`open_weights_support`Model	Unknown	Unknown	Insufficient data
Input price per 1M tokens`input_price_lower`Provider endpoint	$0.26	$0.30	Qwen Plus 0728
Output price per 1M tokens`output_price_lower`Provider endpoint	$0.78	$1.8	Qwen Plus 0728

USAGE ESTIMATOR

Estimate token charges for the selected provider endpoints. Image, audio, request and web-search charges are not included.

This is a provider snapshot, not a quote. Confirm production pricing before use.

Monthly input tokensMonthly output tokensCached input tokens

Qwen Plus 0728$0.416Estimated monthly cost

Qwen3.5 Plus 2026-04-20$0.66Estimated monthly cost