knlp / model usage

OpenRouter · snapshot collected October 23, 2026

How much is Qwen2.5
still used?

About 14 months from release to the final top-50 appearance. Qwen2.5 launched on September 19, 2024. The 7B-Instruct model last appeared on November 9, 2025, just under 14 months later. The family’s final appearance was 72B-Instruct on November 19, 2025, exactly 14 months after launch.

No matching Qwen2.5 model has appeared in OpenRouter’s daily text top 50 since November 20, 2025. We checked through October 22, 2026. The 14 months measure time since release, not continuous time in the rankings; this API has no history before January 2025.

We asked because Qwen2.5-7B provides a strong example of why precise keys can matter in our asymmetric KV-cache experiments. That raises a separate question: how much current traffic might such a result affect?

OpenRouter’s rankings API does not show individual model usage below the top 50.

It combines all those models into one other total. Qwen2.5 may still receive traffic, but we cannot measure its share of that total. Leaving the top 50 does not mean the model stopped being used.

September–December 2024No API history

We requested this period, but the endpoint starts in January 2025.

January–December 20257 model IDs observed

Rankings exist on 363 days. Qwen2.5’s final observed appearance is November 19.

January 1–October 22, 20260 top-50 appearances

All 295 daily rankings are present. Zero appearances does not mean zero tokens.

September 2024–October 2026 · seven observed model IDs

From regular appearances to no top-50 entries

The monthly view shows how often each variant reached the rankings. The daily view shows token volume only when a model was individually reported. Neither graph fills unknown traffic with zero.

On a narrow screen, scroll each graph sideways or open the full-size image.

Days in the top 50, by month

Monthly heatmap of seven Qwen2.5 model IDs. The original 72B, 7B and Coder-32B variants appear frequently in early 2025, then less often. All variants have zero top-50 appearances in 2026 through October 22.
Each cell counts reported days, not tokens. 0 means no top-50 appearance, not zero usage. Gray cells and dashes mark unavailable 2024 history. The coverage counts above the graph account for the two missing days in 2025; October 2026 contains only 22 days. Open full-size monthly graph →

Daily input plus output token volume

Seven panels show daily input plus output tokens for Qwen2.5 variants on a shared logarithmic scale. Observations become sparse during 2025 and end in November. Gray shading marks unavailable 2024 history; two amber lines mark missing dataset dates.
Each dot is one model’s reported total for one day. The vertical axis is millions of tokens on a logarithmic scale; each major step is ten times the previous value. Blank dates have unknown individual traffic. Gray marks history outside the API’s range. The yellow/amber lines mark June 15 and July 15, 2025, when no dataset rows were returned for any model. Their cause is unknown. Open full-size daily graph →

Seven observed IDs · free alias kept separate

When each variant last appeared

The table counts days when OpenRouter reported each model individually. All appearances were in 2025. The highlighted row corresponds to the model name used in our reference experiment; the rankings do not identify its serving precision.

Daily text rankings · January 1, 2025–October 22, 2026 · dates in UTC
Model · OpenRouter IDLast appearanceDays in top 50Best daily rank
Qwen2.5-7B-Instruct · reference modelqwen/qwen-2.5-7b-instruct1339
Qwen2.5-72B-Instructqwen/qwen-2.5-72b-instruct1849
Qwen2.5-Coder-32B-Instructqwen/qwen-2.5-coder-32b-instruct1049
Qwen2.5-32B-Instructqwen/qwen2.5-32b-instruct145
Qwen2.5-VL-32B-Instructqwen/qwen2.5-vl-32b-instruct342
Qwen2.5-VL-72B-Instructqwen/qwen2.5-vl-72b-instruct1721
Qwen2.5-72B-Instruct · free aliasqwen/qwen-2.5-72b-instruct:free148

These seven IDs are the variants observed in the rankings, not a complete catalog of Qwen2.5 checkpoints. Days in the table need not be consecutive. An absent model has unknown individual volume; it is not assigned zero.

A useful reference, with limited evidence of current reach

The Qwen2.5 quantization result still describes the tested model and recipes. This usage analysis does not weaken that measurement. It does limit the case for treating Qwen2.5 alone as evidence of a broad benefit for today’s serving workloads. The comparisons on newer models matter for that question.

A model can leave the top 50 while still handling substantial traffic. Other models can grow faster, and a model may also become unavailable. These rankings cannot distinguish those explanations or establish why users changed models. They do not measure direct provider traffic, local deployments, or private deployments outside OpenRouter.

There is no provider breakdown in this dataset. Providers are pooled under each model ID. It cannot tell us which provider serves most Qwen2.5 traffic, or whether a provider uses BF16, quantized weights, or a particular KV-cache format.

Scope, missing dates and source

What we measured

We collected OpenRouter’s daily rankings API on October 23, 2026, using period=day and modality=text. Each reported total is input plus output tokens summed across requests for one model on one day. It is not a session total, initial-prompt size, request count, or user count.

The endpoint reports 50 model IDs and combines the remainder into other. We selected IDs matching ^qwen/qwen-?2\.5(?:-|:|$) and ranked the named models by daily token totals, excluding other. We kept the free 72B alias separate. Third-party fine-tunes and distillations are not inferred to belong to the family. Text-output filtering can include VL models receiving multimodal inputs.

We requested September 1, 2024–October 22, 2026. The 2024-only request was rejected because history begins on January 1, 2025. Within the available period, June 15 and July 15, 2025 return no rows for any model. Those are dataset gaps with an unknown cause, not evidence of zero traffic or a service outage. We did not interpolate them.

The snapshot contains 658 daily rankings and 443 Qwen2.5 model/day observations. Counts and last-appearance dates above come from those observations. Raw responses, request metadata, checksums and analysis scripts were retained for this snapshot. Historical API revisions or a newer collection may change the findings; this page is dated rather than a live tracker.

Source: OpenRouter (openrouter.ai/rankings), as of 2026-10-23. Dataset licensed under CC BY 4.0. knlp’s analysis filters model IDs, computes ranks and appearance counts, and labels missing coverage. Tokenizers differ across providers, so tokens are a workload measure rather than an exact comparison of text quantity.

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