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Comparison · 2 models · Updated Oct 4, 2026

GPT-5 Pro vs GPT-5.2

GPT-5.2 comes out ahead, 61 to 54 on our weighted score, and it is the cheaper option too.

  1. OpenAI

    GPT-5 Pro

    Released Oct 6, 2025

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

    OpenAI

    GPT-5.2

    Released Dec 11, 2025

    61/100
    • ECI153.5
    • Price$1.75 / $14.00
    • Context400K
    Full specs Remove GPT-5.2

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

GPT-5.2 is our pick

GPT-5.2 is the better all-round choice, scoring 61/100 against GPT-5 Pro (54). It leads on capability and price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGPT-5.2Capabilities Index (ECI): GPT-5.2 153.5 · GPT-5 Pro 150.3
  • Lowest priceGPT-5.2GPT-5.2 $4.81 · GPT-5 Pro $41.25 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameGPT-5 Pro 400,000 · GPT-5.2 400,000 tokens
  • Widest inputsSame inputsGPT-5 Pro: Text, Images · GPT-5.2: Text, Images
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGPT-5 ProGPT-5.2
CapabilityCapabilities Index (ECI)50%7883
Price25%018
Inputs & features15%7070
Context window10%4444
Overall100%54/10061/100
02 — Side by side

Every spec in one table

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

GPT-5 Pro vs GPT-5.2 specifications side by side
SpecificationGPT-5 ProOpenAIGPT-5.2OpenAI
Capability
Capabilities Index (ECI)150.3153.5 (best)
ECI rank#46 of 148#38 of 148 (best)
GPQA DiamondGraduate-level science questions—91.4%
FrontierMath Tiers 1–3Research-level mathematics55.8%67.4% (best)
OTIS Mock AIME 2024–2025Competition mathematics—96.1%
SWE-bench VerifiedFixing real GitHub issues—73.8%
SimpleQA VerifiedShort factual questions—37.1%
Price per million tokens
Input$15.00$1.75 (best)
Output$120.00$14.00 (best)
Cached input—$0.175
Blended (3:1)$41.25$4.81 (best)
Long-context rateSame rateSame rate
Price sourceOfficial OpenAI APIOfficial OpenAI API
Limits
Context window400,000 tokens400,000 tokens
Max output272,000 tokens (best)128,000 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningYeshighYeslow · medium · high · xhigh
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryProprietary
API model IDgpt-5-progpt-5.2
API providers1221 (best)
ReleasedOct 6, 2025Dec 11, 2025
Knowledge cutoffSep 30, 2024Aug 31, 2025
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 Pro$390.00
  • GPT-5.2$45.50
04 — Questions

Which should you choose?

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

GPT-5.2 is the better all-round choice, scoring 61/100 against GPT-5 Pro (54). It leads on capability and price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

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

GPT-5.2 is cheaper at $1.75 input / $14.00 output per million tokens (official OpenAI API price). GPT-5 Pro costs $15.00 input / $120.00 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $4.81 per million tokens for GPT-5.2 versus $41.25 for GPT-5 Pro (8.6× as much).

Which scores higher on benchmarks?

GPT-5.2 scores higher on the Capabilities Index (ECI): GPT-5.2 153.5 (#38 of 148) and GPT-5 Pro 150.3 (#46 of 148). The confidence ranges of the top two overlap (151.7–155.4 vs 148.5–152.8), so treat the gap as small. On individual benchmarks: FrontierMath Tiers 1–3 — GPT-5.2 67.4%, GPT-5 Pro 55.8%.

Which is better for coding?

There are no published SWE-bench Verified results for GPT-5 Pro yet, so there is no like-for-like coding score. On overall capability, GPT-5.2 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 Pro and GPT-5.2 share the same 400,000-token context window. Maximum output per response: GPT-5 Pro up to 272,000, GPT-5.2 up to 128,000 tokens.

Which can read images, PDFs, audio or video?

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

Are any of these open source?

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

Which is newer?

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

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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