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CodeQwen1.5

The 7B predecessor to Qwen2.5-Coder, under the Tongyi Qianwen license.

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About

CodeQwen1.5 (spring 2024) is Alibaba's 7B code model that Qwen2.5-Coder directly succeeded — the Qwen team's own reports frame Qwen2.5-Coder as bringing major improvements 'upon CodeQwen1.5' in generation, reasoning, and fixing. It was a strong 7B coder for its time (team-reported HumanEval 83.5 for the chat variant). It ships under the older Tongyi Qianwen custom license, not Apache 2.0, so check the Hugging Face model card before commercial use. Strictly of historical interest now that Qwen2.5-Coder exists, but it documents the lineage.

Specs

Context window

Pricing

Self-host: free within the Tongyi Qianwen license terms — confirm on the Hugging Face model card.

Free quota

No official free API; self-hosting is free.

API access

Weights on Hugging Face; no first-party hosted API.

Weights

Open weights

Released

Not disclosed

Benchmarks

Team-reported (via Qwen2.5-Coder technical report): CodeQwen1.5-7B-Chat — HumanEval 83.5.

Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.

Use cases

code generationQwen lineage researchself-hosted coding

Trust score — 6/10

/10 trustMetrics-checked

Scored 6/10 (metrics tier, metrics-v1). Evidence: Lineage verified via Qwen2.5-Coder HF README ('formerly known as CodeQwen') and Qwen2.5-Coder technical report benchmark table (HumanEval 83.5).; Exact release day not pinned (spring 2024) — releasedAt left null. Tongyi Qianwen custom license flagged for HF-card confirmation. Metrics tier: thinner direct sourcing..

Sources