GPT-5.2

vgpt-5-2-2025-12-11

OpenAI

Modelreasoningmultimodal400k-contextecosystem-leader
91
Exceptional
About This Model

OpenAI's latest flagship with 400K context window, 100% AIME 2025 score, and 52.9% ARC-AGI-2. Three variants: Instant (speed), Thinking (reasoning), Pro (accuracy). Industry-leading abstract reasoning.

Last Evaluated: January 14, 2026
Official Website

Trust Vector Analysis

Dimension Breakdown

🚀Performance & Reliability
+

Industry-leading reasoning with 100% AIME and 52.9% ARC-AGI-2. 400K context enables full codebase processing. ~30% fewer hallucinations than GPT-5.1.

task accuracy code

Industry-standard coding benchmarks

Evidence
SWE-bench Verified80% on SWE-bench Verified
SWE-bench Pro56.4% on SWE-bench Pro (Codex variant)
Terminal-bench 2.064.0% (industry-leading command-line tasks)
highVerified: 2026-01-14
task accuracy reasoning

PhD-level and Olympiad-level reasoning benchmarks

Evidence
AIME 2025100% (perfect score, no tools)
GPQA Diamond93.2% Pro / 92.4% Thinking (near state-of-the-art)
ARC-AGI-252.9% (massive lead, 3x GPT-5.1)
ARC-AGI-190.5% (first model above 90%)
FrontierMath Tier 1-340.3% (10% improvement over GPT-5.1)
highVerified: 2026-01-14
task accuracy general

Crowdsourced and expert-level comparisons

Evidence
LMSYS Chatbot ArenaTop tier ELO rating
GDPval70.9% (beats human experts at 11x speed, <1% cost)
highVerified: 2026-01-14
output consistency

Internal testing across model variants

Evidence
OpenAI Documentation~30% fewer errors/hallucinations vs GPT-5.1
highVerified: 2026-01-14
latency p50

Platform-wide performance metrics

Evidence
OpenAI Performance DataInstant variant optimized for low latency
highVerified: 2026-01-14
latency p95

95th percentile response time

Evidence
Community benchmarkingp95 latency varies by variant
mediumVerified: 2026-01-14
context window

Official specification

Evidence
OpenAI Documentation400K token context window (industry-leading for non-Google)
highVerified: 2026-01-14
uptime

Historical uptime data

Evidence
OpenAI Status99.9% uptime (last 90 days)
highVerified: 2026-01-14
🛡️Security
+

Strong security with multi-layer safety systems. 30% fewer hallucinations improves output safety.

prompt injection resistance

Testing against OWASP LLM01 attacks

Evidence
OpenAI Safety ResearchEnhanced prompt injection defenses
mediumVerified: 2026-01-14
jailbreak resistance

Adversarial prompt testing

Evidence
OpenAI System CardImproved resistance over GPT-5.1
mediumVerified: 2026-01-14
data leakage prevention

Policy review and data handling practices

Evidence
OpenAI Privacy PolicyNo training on API data by default
mediumVerified: 2026-01-14
output safety

Safety testing across harmful content categories

Evidence
OpenAI Safety EvalsMulti-layer safety with improved refusal accuracy
highVerified: 2026-01-14
api security

Review of API security features

Evidence
OpenAI Platform DocsAPI key + OAuth2, HTTPS, rate limiting
highVerified: 2026-01-14
🔒Privacy & Compliance
+

Good privacy with 30-day default retention. Zero retention for enterprise. Not HIPAA eligible.

data residency

Review of enterprise documentation

Evidence
OpenAI EnterpriseData residency options for enterprise
highVerified: 2026-01-14
training data optout

Policy review

Evidence
OpenAI Data ControlsAPI data not used for training by default
highVerified: 2026-01-14
data retention

Terms of service review

Evidence
OpenAI TermsAPI logs retained for 30 days (zero retention for enterprise)
highVerified: 2026-01-14
pii handling

Review of data protection capabilities

Evidence
OpenAI Safety ToolsCustomer responsible for PII, moderation API available
mediumVerified: 2026-01-14
compliance certifications

Verification of certifications

Evidence
OpenAI Trust CenterSOC 2 Type II, ISO 27001, GDPR compliant
highVerified: 2026-01-14
zero data retention

Enterprise feature review

Evidence
OpenAI EnterpriseZero retention available for enterprise tier
highVerified: 2026-01-14
👁️Trust & Transparency
+

Excellent transparency with 30% fewer hallucinations. Thinking variant provides reasoning insight. Comprehensive system card.

explainability

Evaluation of reasoning transparency

Evidence
GPT-5.2 Thinking VariantThinking variant exposes reasoning process
highVerified: 2026-01-14
hallucination rate

Factual accuracy testing

Evidence
OpenAI Testing~30% fewer errors/hallucinations than GPT-5.1
highVerified: 2026-01-14
bias fairness

Bias benchmarks and demographic testing

Evidence
OpenAI System CardRegular bias testing and red-teaming
mediumVerified: 2026-01-14
uncertainty quantification

Qualitative confidence expression

Evidence
GPT-5.2 CapabilitiesBetter uncertainty expression with lower hallucination rate
mediumVerified: 2026-01-14
model card quality

Documentation completeness review

Evidence
GPT-5.2 System CardComprehensive system card with detailed evaluations
highVerified: 2026-01-14
training data transparency

Public disclosure review

Evidence
OpenAI BlogGeneral description, specific sources not disclosed
mediumVerified: 2026-01-14
guardrails

Safety mechanism analysis

Evidence
OpenAI Safety SystemsMulti-layer safety with improved accuracy
highVerified: 2026-01-14
⚙️Operational Excellence
+

Industry-leading operational maturity with largest ecosystem. Three model variants for different use cases. Excellent tooling.

api design quality

API design and feature review

Evidence
OpenAI APIRESTful API with streaming, function calling, vision, audio
highVerified: 2026-01-14
sdk quality

SDK quality and maintenance review

Evidence
OpenAI SDKsOfficial SDKs for Python, Node.js, Go, .NET, Swift
highVerified: 2026-01-14
versioning policy

Versioning policy review

Evidence
OpenAI VersioningClear versioning with deprecation notices
highVerified: 2026-01-14
monitoring observability

Observability tools review

Evidence
OpenAI DashboardDetailed usage dashboard with costs, tokens, rate limits
highVerified: 2026-01-14
support quality

Support and documentation assessment

Evidence
OpenAI Support24/7 support, comprehensive docs, active community
highVerified: 2026-01-14
ecosystem maturity

Ecosystem breadth and depth analysis

Evidence
OpenAI EcosystemLargest ecosystem with Assistants API, plugins, GPTs, Codex
highVerified: 2026-01-14
license terms

License terms review

Evidence
OpenAI TermsStandard commercial terms with usage policies
highVerified: 2026-01-14
Strengths
  • +Industry-leading reasoning: 100% AIME, 52.9% ARC-AGI-2, 93.2% GPQA Diamond
  • +400K context window (largest non-Google model)
  • +~30% fewer hallucinations than GPT-5.1
  • +Three variants: Instant (speed), Thinking (reasoning), Pro (accuracy)
  • +90.5% ARC-AGI-1 (first model above 90%)
  • +~390x efficiency improvement on ARC-AGI-1 vs o3 (High) from year prior
  • +Largest AI ecosystem with best tooling
Limitations
  • !Not HIPAA eligible (unlike Claude models)
  • !30-day data retention vs Anthropic's 0-day
  • !1.4x price increase over GPT-5.1 ($1.75/$14)
  • !Slightly behind Claude Opus 4.5 on SWE-bench (80% vs 80.9%)
  • !Smaller context than Gemini 3 (400K vs 1M)
Metadata
pricing
input: $1.75 per 1M tokens
output: $14.00 per 1M tokens
notes: 1.4x price increase from GPT-5.1, reflecting enhanced capabilities
last verified: 2026-01-14
context window: 400000
max output: 128000
languages
0: English
1: Spanish
2: French
3: German
4: Italian
5: Portuguese
6: Japanese
7: Korean
8: Chinese
9: Russian
10: Arabic
11: Hindi
12: 50+ languages
modalities
0: text
1: vision
2: audio (input/output)
api endpoint: https://api.openai.com/v1/chat/completions
open source: false
architecture: Transformer-based with unified thinking system
parameters: Not disclosed
knowledge cutoff: August 31, 2025

Use Case Ratings

code generation

80% SWE-bench with Codex variant reaching 56.4% SWE-bench Pro. 400K context enables full codebase analysis.

customer support

Instant variant provides low latency. 30% fewer hallucinations improves response accuracy.

content creation

Excellent creative capabilities with natural writing style. Multiple variants for different needs.

data analysis

Strong analytical capabilities. 400K context enables massive dataset analysis.

research assistant

Thinking variant excels at deep analysis. 400K context for comprehensive research.

legal compliance

Good capabilities but not HIPAA eligible. 30-day default retention may be concern.

healthcare

Not HIPAA eligible. Good clinical understanding but privacy controls less strict.

financial analysis

Excellent quantitative reasoning with 100% AIME. Strong for financial modeling.

education

Exceptional math (100% AIME). Patient explanations with reduced hallucinations.

creative writing

Strong creative capabilities with good narrative flow and character development.