GPT-5.2 vs GPT-5 Pro
GPT-5.2 comes out ahead, 61 to 54 on our weighted score, and it is the cheaper option too.
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-5.2 400,000 · GPT-5 Pro 400,000 tokens
- Widest inputsSame inputsGPT-5.2: Text, Images · GPT-5 Pro: Text, Images
- Self-hostingNo open weightsBoth are available only through APIs
| Measure | Weight | GPT-5.2 | GPT-5 Pro |
|---|---|---|---|
| CapabilityCapabilities Index (ECI) | 50% | 83 | 78 |
| Price | 25% | 18 | 0 |
| Inputs & features | 15% | 70 | 70 |
| Context window | 10% | 44 | 44 |
| Overall | 100% | 61/100 | 54/100 |
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification |  GPT-5.2OpenAI | GPT-5 ProOpenAI |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | 153.5 (best) | 150.3 |
| ECI rank | #38 of 148 (best) | #46 of 148 |
| GPQA DiamondGraduate-level science questions | 91.4% | — |
| FrontierMath Tiers 1–3Research-level mathematics | 67.4% (best) | 55.8% |
| 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 | $1.75 (best) | $15.00 |
| Output | $14.00 (best) | $120.00 |
| Cached input | $0.175 | — |
| Blended (3:1) | $4.81 (best) | $41.25 |
| Long-context rate | Same rate | Same rate |
| Price source | Official OpenAI API | Official OpenAI API |
| Limits | ||
| Context window | 400,000 tokens | 400,000 tokens |
| Max output | 128,000 tokens | 272,000 tokens (best) |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | Yes |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yeslow · medium · high · xhigh | Yeshigh |
| Tool calling | Yes | Yes |
| Structured output | Yes | Yes |
| Availability | ||
| Weights | Proprietary | Proprietary |
| API model ID | gpt-5.2 | gpt-5-pro |
| API providers | 21 (best) | 12 |
| Released | Dec 11, 2025 | Oct 6, 2025 |
| Knowledge cutoff | Aug 31, 2025 | Sep 30, 2024 |
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$45.50
- GPT-5 Pro$390.00
Which should you choose?
Which is better: GPT-5.2 or GPT-5 Pro?
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-5.2 or GPT-5 Pro?
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-5.2 and GPT-5 Pro share the same 400,000-token context window. Maximum output per response: GPT-5.2 up to 128,000, GPT-5 Pro up to 272,000 tokens.
Which can read images, PDFs, audio or video?
GPT-5.2 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 and GPT-5 Pro 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-5.2 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.
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