GPT-5.2 Pro
Peak 2025 reasoning flagship from OpenAI, achieving 84.5% on SWE-bench Verified and 89.2% on GPQA Diamond with dynamic test-time compute search.
500k
~375k words input
$12 / $48
Prompt / Completion per 1M
84.5 % resolved
SWE-bench Verified
Cloud Managed
Zero local VRAM
Holistic Capability Distribution
Normalized 0-100 rating vectors balanced across intelligence, throughput, and economics.
Verified LLM Benchmarks
Empirical evaluations across academic reasoning, software engineering, agentic execution, and human preference.
Inference Latency & Generation Throughput
Empirical telemetry benchmarking generation throughput (Tokens/Second) and Time to First Token (TTFT).
Measured under concurrent production load
p95 latency: 1350 ms
Across 2,400 monitored requests
Architectural Strengths vs. Operational Considerations
An objective technical balance sheet analyzing deployment advantages and production constraints.
Key Architectural Strengths
- Unprecedented accuracy on formal mathematical theorem proving and complex software repos.
- 84.5% SWE-bench resolution with deep code tree-search validation.
- Lower price ($12/$48) compared to original GPT-5 Pro.
Operational Considerations
- Extended thinking can increase time-to-first-token on complex proofs.
Hardware & Execution Parameters
Genealogical Provenance
Upgraded professional reasoning model concluding the 2025 release cycle.
openai gpt 5 pro
GPT-5.2 Pro
Architecture Engineering & Capability Deep-Dive
Topology & Attention Mechanics
High-order reasoning transformer combining reinforcement learning verifiers with massive test-time tree search.
Evaluation Profile & Reasoning Capabilities
Exhibits expert mathematician and principal engineer level autonomous reasoning.
Inference Economics & Cost Optimization
$12 / $48 per 1M tokens.
Primary Production Workloads & Suitability
Cloud Deployment Architecture & Hardware Sizing
Cloud Deployment Architecture
Distributed enterprise serving infrastructure, autoscaling semantics, and runtime execution profile.
Proprietary commercial model hosted on managed multi-region clusters with automatic autoscaling, high availability, and prompt prefix caching.
Multi-Tenant Cloud API
Continuous autoscaling with regional failover
0 GB Local VRAM
Inference executed on hyperscaler accelerator clusters
500k tokens
Supported with automated KV cache prefix compression
SDK Installation
Official Repositories & Papers
Compare Showdowns
GPT-5.2 Pro vs GPT-5.2
Compare GPT-5.2 Pro against GPT-5.2's verified benchmarks, context window, and pricing.
GPT-5.2 Pro vs GPT-5.4 Pro
Compare GPT-5.2 Pro against GPT-5.4 Pro's verified benchmarks, context window, and pricing.
GPT-5.2 Pro vs OpenAI Decisions
Compare GPT-5.2 Pro against OpenAI Decisions's verified benchmarks, context window, and pricing.
GPT-5.2 Pro vs GPT-3.5 Turbo
Compare GPT-5.2 Pro against GPT-3.5 Turbo's verified benchmarks, context window, and pricing.
Commercial Token Rates & Cost Estimator
$12.00 / 1M
Standard prompt context ingestion
$48.00 / 1M
Generated completion & thinking tokens
$1.20 / 1M
Re-used prompt prefix context
Monthly Production Cost Simulator
$2,592.00
Includes prompt caching
-$648.00
Saved via prefix context caching
Comparable Foundation Architectures
Alternative foundation models with comparable intelligence benchmarks, context windows, and deployment profiles.
GPT-5.2
December 2025 evolution of GPT-5 establishing 81% SWE-bench Verified resolution, 500k context, and enhanced multimodal audio/vision integration.
GPT-5.4 Pro
March 2026 professional reasoning powerhouse from OpenAI, achieving 87.2% on SWE-bench Verified and 91.5% on GPQA Diamond with scalable test-time verification.
OpenAI Decisions
OpenAI Decisions is OpenAI's dedicated high-throughput decision-making API powered by GPT-6 Luna, accessed via the POST /v1/decisions endpoint. Designed for agent routing, automated content moderation, and classification, it processes typed questions (predicates, categorical choices, and rubric scores) roughly 10x faster than standard generation, billed at $0.10 per million input tokens with zero output-token fees.
GPT-3.5 Turbo
OpenAI's foundational conversational model that launched the ChatGPT era, optimized for fast dialogue, summary generation, and lightweight JSON tasks.
SDK Installation & API Integration
import OpenAI from 'openai';
const client = new OpenAI();
const completion = await client.chat.completions.create({
model: 'gpt-5.2-pro',
messages: [{ role: 'user', content: 'Formulate an optimal routing proof for multi-commodity flow under stochastic delays.' }],
});
console.log(completion.choices[0].message.content);Frequently Asked Questions about GPT-5.2 Pro
Engineering specifications, VRAM sizing, commercial licensing terms, token economics, and empirical benchmark evaluations.
GPT-5.2 Pro sets the high-water benchmark for 2025 with 84.5% SWE-bench Verified and 89.2% GPQA Diamond.