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Comparison · 2 models · Updated Oct 4, 2026

GPT-5.2 Pro vs GPT-5 Pro

Too close to call on our weighted score (GPT-5.2 Pro 56, GPT-5 Pro 54). The right pick depends on what you value most.

  1. OpenAI

    GPT-5.2 Pro

    Released Dec 11, 2025

    56/100
    • ECI155.4
    • Price$21.00 / $168.00
    • Context400K
    Full specs Remove GPT-5.2 Pro

  2. OpenAI

    GPT-5 Pro

    Released Oct 6, 2025

    54/100
    • ECI150.3
    • Price$15.00 / $120.00
    • Context400K
    Full specs Remove GPT-5 Pro

  3. Add a model

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01 — Verdict

Too close to call

It is close. Our weighted score puts them within 2 points (GPT-5.2 Pro 56/100, GPT-5 Pro 54/100), so choose by what matters most for your work: GPT-5.2 Pro for raw capability and GPT-5 Pro on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGPT-5.2 ProCapabilities Index (ECI): GPT-5.2 Pro 155.4 · GPT-5 Pro 150.3
  • Lowest priceGPT-5 ProGPT-5 Pro $41.25 · GPT-5.2 Pro $57.75 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameGPT-5.2 Pro 400,000 · GPT-5 Pro 400,000 tokens
  • Widest inputsSame inputsGPT-5.2 Pro: Text, Images · GPT-5 Pro: Text, Images
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGPT-5.2 ProGPT-5 Pro
CapabilityCapabilities Index (ECI)50%8578
Price25%00
Inputs & features15%6070
Context window10%4444
Overall100%56/10054/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

GPT-5.2 Pro vs GPT-5 Pro specifications side by side
SpecificationGPT-5.2 ProOpenAIGPT-5 ProOpenAI
Capability
Capabilities Index (ECI)155.4 (best)150.3
ECI rank#25 of 148 (best)#46 of 148
FrontierMath Tiers 1–3Research-level mathematics74.0% (best)55.8%
Price per million tokens
Input$21.00$15.00 (best)
Output$168.00$120.00 (best)
Cached input——
Blended (3:1)$57.75$41.25 (best)
Long-context rateSame rateSame rate
Price sourceOfficial OpenAI APIOfficial OpenAI API
Limits
Context window400,000 tokens400,000 tokens
Max output128,000 tokens272,000 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningYesmedium · high · xhighYeshigh
Tool callingYesYes
Structured outputNoYes
Availability
WeightsProprietaryProprietary
API model IDgpt-5.2-progpt-5-pro
API providers812 (best)
ReleasedDec 11, 2025Oct 6, 2025
Knowledge cutoffAug 31, 2025Sep 30, 2024
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • GPT-5.2 Pro$546.00
  • GPT-5 Pro$390.00
04 — Questions

Which should you choose?

Which is better: GPT-5.2 Pro or GPT-5 Pro?

It is close. Our weighted score puts them within 2 points (GPT-5.2 Pro 56/100, GPT-5 Pro 54/100), so choose by what matters most for your work: GPT-5.2 Pro for raw capability and GPT-5 Pro on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, GPT-5.2 Pro or GPT-5 Pro?

GPT-5 Pro is cheaper at $15.00 input / $120.00 output per million tokens (official OpenAI API price). GPT-5.2 Pro costs $21.00 input / $168.00 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $41.25 per million tokens for GPT-5 Pro versus $57.75 for GPT-5.2 Pro (1.4× as much).

Which scores higher on benchmarks?

GPT-5.2 Pro scores higher on the Capabilities Index (ECI): GPT-5.2 Pro 155.4 (#25 of 148) and GPT-5 Pro 150.3 (#46 of 148). Their confidence ranges do not overlap (153.0–158.2 vs 148.5–152.8), so the gap is a real one. On individual benchmarks: FrontierMath Tiers 1–3 — GPT-5.2 Pro 74.0%, GPT-5 Pro 55.8%.

Which is better for coding?

There are no published SWE-bench Verified results for GPT-5.2 Pro and GPT-5 Pro yet, so there is no like-for-like coding score. On overall capability, GPT-5.2 Pro leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

GPT-5.2 Pro and GPT-5 Pro share the same 400,000-token context window. Maximum output per response: GPT-5.2 Pro up to 128,000, GPT-5 Pro up to 272,000 tokens.

Which can read images, PDFs, audio or video?

GPT-5.2 Pro accepts text and images; GPT-5 Pro accepts text and images. They handle the same number of input types.

Are any of these open source?

No. GPT-5.2 Pro and GPT-5 Pro are proprietary and only available through APIs and apps.

Which is newer?

GPT-5.2 Pro is the newest, released Dec 11, 2025. GPT-5 Pro came out Oct 6, 2025. Knowledge cutoff: GPT-5.2 Pro Aug 31, 2025, GPT-5 Pro Sep 30, 2024.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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