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Head-to-head comparison

Qwen1.5 4B Chat vs Qwen1.5 72B Chat

Qwen1.5 4B Chat (Qwen) and Qwen1.5 72B Chat (Qwen) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 30 September 2026

As of 30 September 2026, Qwen1.5 72B Chat holds the stronger ModelCap Index position (#227 vs #276).

Which should you choose?

Choose Qwen1.5 4B Chat if…

  • ModelCap publishes no field on which Qwen1.5 4B Chat leads Qwen1.5 72B Chat for this pair.

Choose Qwen1.5 72B Chat if…

  • you want the stronger overall ModelCap Index position — #227 against #276 (16.1 vs 3.8 points).
  • Arena text is your yardstick — 1234 against 1091.
  • Arena coding is your yardstick — 1275 against 1132.
  • you want the more recently listed model — Qwen1.5 72B Chat was listed 30 January 2024, Qwen1.5 4B Chat 30 January 2024.

Qwen1.5 4B Chat vs Qwen1.5 72B Chat: specs, pricing and context

Specification comparison of Qwen1.5 4B Chat and Qwen1.5 72B Chat
FieldQwen1.5 4B ChatQwenQwen1.5 72B ChatQwen
ModelCap Index position#276#227
Index score3.816.1
EvidenceMeasuredMeasured
Input price / 1M tokensUnlistedUnlisted
Output price / 1M tokensUnlistedUnlisted
Context window— tokens— tokens
Max output tokens——
API providers listed00
Weight accessRestricted licenseRestricted license
Input modalitiesTextText
First listed30 January 202430 January 2024
PublisherQwenQwen

Evidence: 2 public benchmark observations across 2 boards · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Qwen1.5 4B Chat vs Qwen1.5 72B Chat

Public benchmark boards where Qwen1.5 4B Chat or Qwen1.5 72B Chat has a published result
BoardQwen1.5 4B ChatQwen1.5 72B ChatLeads
Arena textArena (LMArena)10911082–1100Not reported12341228–1239Not reportedQwen1.5 72B Chat
Arena codingArena (LMArena)11321115–114912751266–1285Qwen1.5 72B Chat

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Qwen1.5 4B Chat vs Qwen1.5 72B Chat: common questions

Is Qwen1.5 4B Chat better than Qwen1.5 72B Chat?

Qwen1.5 72B Chat ranks higher on the ModelCap Index as of 30 September 2026: #227 against #276. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it. Their published uncertainty intervals do not overlap, but the aggregate Index does not predict performance on every task; compare the relevant benchmark configurations before choosing.

Is Qwen1.5 4B Chat cheaper than Qwen1.5 72B Chat?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, Qwen1.5 4B Chat or Qwen1.5 72B Chat?

Both publish a —-token context window.

Which is better for coding, Qwen1.5 4B Chat or Qwen1.5 72B Chat?

Arena coding: Qwen1.5 4B Chat 1132, Qwen1.5 72B Chat 1275 — Qwen1.5 72B Chat leads.

Are Qwen1.5 4B Chat and Qwen1.5 72B Chat open-weight models?

Qwen1.5 4B Chat: Restricted license. Qwen1.5 72B Chat: Restricted license. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Qwen1.5 4B Chat and Qwen1.5 72B Chat?

ModelCap currently lists 0 API providers for Qwen1.5 4B Chat and 0 for Qwen1.5 72B Chat, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Qwen1.5 4B Chat vs Qwen1.5 72B Chat comparison?

Every figure and ModelCap Index position comes from the same published snapshot dated 30 September 2026. Publication and page updates happen separately; use the snapshot date shown on the page.

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