Specification

Release date: 25 Feb 2026
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Status: deprecated
Source:Artificial AnalysisT2observed 5 h agomedium
Openness: open-weights
Source:Artificial AnalysisT2observed 5 h agomedium
Context window: 262.1K tokens
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Max output: 65.5K tokens
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Modalities: image, text, video
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Input modalities: image, text, video
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Output modalities: text
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Tokenizer: Qwen3
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Hugging Face repo: Qwen/Qwen3.5-27B
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Aa median output tokens per second: 75.2
Source:Artificial AnalysisT2observed 5 h agomedium
Openrouter id: qwen/qwen3.5-27b
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Supported parameters: frequency_penalty, include_reasoning, logit_bias, logprobs, max_tokens, min_p, presence_penalty, reasoning, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_logprobs, top_p
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

18

Source tiers

T218

Freshest observation

5 h ago

Conflicts

None

Modalities

Modalities: imagetextvideo
Input: imagetextvideo
Output: text

Capabilities

Tool calling
Yes
OpenRouter public model & pricing listing · T2
Structured output
Yes
OpenRouter public model & pricing listing · T2
Reasoning
Yes
OpenRouter public model & pricing listing · T2
Vision
Yes
OpenRouter public model & pricing listing · T2
Audio
Unavailable
Fine-tuning available
Unavailable

Context window: 262.1K tokens
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Max output: 65.5K tokens
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium
Tokenizer: Qwen3
Source:OpenRouter public model & pricing listingT2observed 7 h agomedium

Benchmark results
Benchmark	Score	Metric	Config	Evaluated	Source
τ²-bench	93.86%	pass^1	aa_slug=qwen3-5-27b · evaluator=Artificial Analysis · index_version=4.3	—	artificialanalysis.aiT2
Artificial Analysis Intelligence Index	22.9	index	aa_slug=qwen3-5-27b · version=4.3 · estimated=true	—	artificialanalysis.aiT2
GPQA	85.76%	accuracy	aa_slug=qwen3-5-27b · variant=GPQA Diamond · evaluator=Artificial Analysis · index_version=4.3	—	artificialanalysis.aiT2
Humanity's Last Exam	23.91%	accuracy	aa_slug=qwen3-5-27b · evaluator=Artificial Analysis · index_version=4.3	—	artificialanalysis.aiT2
IFBench	75.58%	accuracy	aa_slug=qwen3-5-27b · evaluator=Artificial Analysis · index_version=4.3	—	artificialanalysis.aiT2
MMMU-Pro	75.03%	accuracy	aa_slug=qwen3-5-27b · evaluator=Artificial Analysis · index_version=4.3	—	artificialanalysis.aiT2
Terminal-Bench	32.58%	accuracy	aa_slug=qwen3-5-27b · variant=hard · evaluator=Artificial Analysis · index_version=4.3	—	artificialanalysis.aiT2

Scores are reported as published, with their evaluation configuration (harness, prompting, judge). Results with different configs are not directly comparable — see methodology.

Current prices

Current prices per 1M tokens
Provider	Input / 1M	Output / 1M	Cached in	Batch in / out	Context	Observed	Source
OpenRouterqwen/qwen3.5-27b	$0.195	$1.56	—	—	262.1K	3 h ago	openrouter.aiT2

USD per 1M tokens as published by each provider (USD). Rows are append-only: every change is kept in the history below.

Available through 1

OpenRouter

Price history

Input price · USD / 1M tokens

Output price · USD / 1M tokens

OpenRouter

No hardware estimate available

Estimates need a parameter count; this model has none recorded from a source.

No lineage recorded

Lineage comes from explicit `derived_from`, `fine_tuned_from`, `distilled_from` and `quantized_from` relations stated by sources.

Papers 0

No papers linked yet.

Repositories 0

No repositories linked yet.

As of

Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.

Claim history

18 claims · 18 properties

Release daterelease_date1

Claim history for Release date
Value	Valid from → to	Status	Source	Confidence	Extractor
25 Feb 2026	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Statusstatus1

Claim history for Status
Value	Valid from → to	Status	Source	Confidence	Extractor
deprecated	11 Sept 2026 22:42 UTC → current	current	Artificial AnalysisT2	medium	deterministic

Opennessopenness1

Claim history for Openness
Value	Valid from → to	Status	Source	Confidence	Extractor
open-weights	11 Sept 2026 22:42 UTC → current	current	Artificial AnalysisT2	medium	deterministic

Context windowcontext_length1

Claim history for Context window
Value	Valid from → to	Status	Source	Confidence	Extractor
262.1K tokens	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Max outputmax_output_tokens1

Claim history for Max output
Value	Valid from → to	Status	Source	Confidence	Extractor
65.5K tokens	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Modalitiesmodalities1

Claim history for Modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
image, text, video	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Input modalitiesmodalities_input1

Claim history for Input modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
image, text, video	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Output modalitiesmodalities_output1

Claim history for Output modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
text	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Tokenizertokenizer1

Claim history for Tokenizer
Value	Valid from → to	Status	Source	Confidence	Extractor
Qwen3	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Hugging Face repohf_repo1

Claim history for Hugging Face repo
Value	Valid from → to	Status	Source	Confidence	Extractor
Qwen/Qwen3.5-27B	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Descriptiondescription1

Claim history for Description
Value	Valid from → to	Status	Source	Confidence	Extractor
The Qwen3.5 27B native vision-language Dense model incorporates a linear attention mechanism, delivering fast response times while balancing inference speed and performance. Its overall capabilities are comparable to those of...	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Aa median output tokens per secondmetric.aa_median_output_tokens_per_second1

Claim history for Aa median output tokens per second
Value	Valid from → to	Status	Source	Confidence	Extractor
75.2	11 Sept 2026 22:42 UTC → current	current	Artificial AnalysisT2	medium	deterministic

Openrouter idopenrouter_id1

Claim history for Openrouter id
Value	Valid from → to	Status	Source	Confidence	Extractor
qwen/qwen3.5-27b	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Reasoningreasoning1

Claim history for Reasoning
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Structured outputstructured_output1

Claim history for Structured output
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Supported parameterssupported_parameters1

Claim history for Supported parameters
Value	Valid from → to	Status	Source	Confidence	Extractor
frequency_penalty, include_reasoning, logit_bias, logprobs, max_tokens, min_p, presence_penalty, reasoning, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_logprobs, top_p	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Tool callingtool_calling1

Claim history for Tool calling
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Visionvision1

Claim history for Vision
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

11 Sept 2026
Benchmark resultModelQwen3.5-27BQwen
Qwen3.5-27B scores 32.58% on Terminal-Bench
artificial_analysis
artificialanalysis.ai
11 Sept 2026
Benchmark resultModelQwen3.5-27BQwen
Qwen3.5-27B scores 93.86% on τ²-bench
artificial_analysis
artificialanalysis.ai
11 Sept 2026
Benchmark resultModelQwen3.5-27BQwen
Qwen3.5-27B scores 75.03% on MMMU-Pro
artificial_analysis
artificialanalysis.ai
11 Sept 2026
Benchmark resultModelQwen3.5-27BQwen
Qwen3.5-27B scores 75.58% on IFBench
artificial_analysis
artificialanalysis.ai
11 Sept 2026
Benchmark resultModelQwen3.5-27BQwen
Qwen3.5-27B scores 23.91% on Humanity's Last Exam
artificial_analysis
artificialanalysis.ai
11 Sept 2026
Benchmark resultModelQwen3.5-27BQwen
Qwen3.5-27B scores 85.76% on GPQA
artificial_analysis
artificialanalysis.ai
11 Sept 2026
Benchmark resultModelQwen3.5-27BQwen
Qwen3.5-27B scores 22.9 on Artificial Analysis Intelligence Index
artificial_analysis
artificialanalysis.ai
25 Feb 2026
New modelModelQwen3.5-27BQwen
New model: Qwen3.5-27B (Qwen)
openrouter
openrouter.ai
11 Sept 2026
Listed by providerModelQwen3.5-27BQwen
OpenRouter lists Qwen3.5-27B at $0.195 in / $1.56 out per 1M tokens
openrouter
openrouter.ai

Full timeline →

Source documents
Source	Document	Type	Tier	Last observed	Snapshots
OpenRouter public model & pricing listing	openrouter.ai/api/v1/models	catalogue	T2· Quality secondary	3 h ago	4
Artificial Analysis	artificialanalysis.ai/leaderboards/models	leaderboard	T2· Quality secondary	5 h ago	1

Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.