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Head-to-head comparison

GPT-5.2 Chat vs GLM 5V Turbo

GPT-5.2 Chat (OpenAI) and GLM 5V Turbo (Z.ai) 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 17 August 2026

As of 17 August 2026, GPT-5.2 Chat holds the stronger ModelCap Index position (#9 vs #29); GLM 5V Turbo is 3.5× cheaper per output token ($4.00/1M vs $14.00/1M); and GLM 5V Turbo offers the longer context window (203K vs 128K tokens).

Which should you choose?

Choose GPT-5.2 Chat if…

  • you want the stronger overall ModelCap Index position — #9 against #29 (74.9 vs 60.2 points).
  • Arena coding is your yardstick — 1515 against 1490.

Choose GLM 5V Turbo if…

  • API cost matters — $4.00/1M output tokens against $14.00/1M, about 3.5× cheaper.
  • your workload is prompt-heavy — input tokens cost $1.20/1M against $1.75/1M.
  • you need the longer context window — 203K tokens against 128K.
  • you want the more recently listed model — GLM 5V Turbo was listed 1 April 2026, GPT-5.2 Chat 10 December 2025.

GPT-5.2 Chat vs GLM 5V Turbo: specs, pricing and context

Specification comparison of GPT-5.2 Chat and GLM 5V Turbo
FieldGPT-5.2 ChatOpenAIGLM 5V TurboZ.ai
ModelCap Index position#9#29
Index score74.960.2
EvidenceMeasuredMeasured
Input price / 1M tokens$1.75$1.20
Output price / 1M tokens$14.00$4.00
Context window128K tokens203K tokens
Max output tokens32K131K
API providers listed11
Weight accessAPI onlyAPI only
Input modalitiesFile, Image, TextImage, Text, Video
First listed10 December 20251 April 2026
PublisherOpenAIZ.ai

Evidence: 2 public benchmark observations across 2 boards · 3 public benchmark observations across 3 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: GPT-5.2 Chat vs GLM 5V Turbo

Public benchmark boards where GPT-5.2 Chat or GLM 5V Turbo has a published result
BoardGPT-5.2 ChatGLM 5V TurboLeads
Arena codingArena (LMArena)15151508–152214901478–1502GPT-5.2 Chat
Artificial Analysis Intelligence IndexArtificial Analysis—35.3intelligence-indexOnly one result

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.

GPT-5.2 Chat vs GLM 5V Turbo: common questions

Is GPT-5.2 Chat better than GLM 5V Turbo?

GPT-5.2 Chat ranks higher on the ModelCap Index as of 17 August 2026: #9 against #29. 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.

Is GPT-5.2 Chat cheaper than GLM 5V Turbo?

GLM 5V Turbo is cheaper on output tokens: $4.00/1M against $14.00/1M. Input tokens are $1.75/1M for GPT-5.2 Chat and $1.20/1M for GLM 5V Turbo. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, GPT-5.2 Chat or GLM 5V Turbo?

GLM 5V Turbo has the larger context window: 203K tokens against 128K.

Which is better for coding, GPT-5.2 Chat or GLM 5V Turbo?

Arena coding: GPT-5.2 Chat 1515, GLM 5V Turbo 1490 — GPT-5.2 Chat leads.

Are GPT-5.2 Chat and GLM 5V Turbo open-weight models?

GPT-5.2 Chat: API only. GLM 5V Turbo: API only. 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 GPT-5.2 Chat and GLM 5V Turbo?

ModelCap currently lists 1 API provider for GPT-5.2 Chat and 1 for GLM 5V Turbo, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this GPT-5.2 Chat vs GLM 5V Turbo comparison?

Every figure comes from the sealed ModelCap dataset published 17 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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