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.
500k
~375k words input
$10 / $40
Prompt / Completion per 1M
87.2 % 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: 1250 ms
Across 2,600 monitored requests
Architectural Strengths vs. Operational Considerations
An objective technical balance sheet analyzing deployment advantages and production constraints.
Key Architectural Strengths
- 87.2% on SWE-bench Verified establishes industry-leading repository problem solving.
- GPQA Diamond exceeds 91% on doctoral-level scientific questioning.
- Price reduction to $10 / $40 makes top-tier reasoning broadly accessible.
Operational Considerations
- Extended thinking can consume considerable output tokens on long mathematical derivations.
Hardware & Execution Parameters
Genealogical Provenance
Professional tier reasoning release in the GPT-5.4 wave.
openai gpt 5 2 pro
GPT-5.4 Pro
Architecture Engineering & Capability Deep-Dive
Topology & Attention Mechanics
Multi-layered reasoning architecture featuring dynamic test-time tree search and self-checking verifier networks.
Evaluation Profile & Reasoning Capabilities
Autonomous repo-scale bug reproduction, symbolic math proofs, and legal contracts.
Inference Economics & Cost Optimization
$10 / $40 per 1M tokens with prompt caching read discounts.
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-5.4 Pro vs Claude Opus 4.7
Compare GPT-5.4 Pro against Claude Opus 4.7's verified benchmarks, context window, and pricing.
GPT-5.4 Pro vs GPT-5.4
Compare GPT-5.4 Pro against GPT-5.4's verified benchmarks, context window, and pricing.
GPT-5.4 Pro vs OpenAI Decisions
Compare GPT-5.4 Pro against OpenAI Decisions's verified benchmarks, context window, and pricing.
GPT-5.4 Pro vs GPT-3.5 Turbo
Compare GPT-5.4 Pro against GPT-3.5 Turbo's verified benchmarks, context window, and pricing.
Commercial Token Rates & Cost Estimator
$10.00 / 1M
Standard prompt context ingestion
$40.00 / 1M
Generated completion & thinking tokens
$1.00 / 1M
Re-used prompt prefix context
Monthly Production Cost Simulator
$2,160.00
Includes prompt caching
-$540.00
Saved via prefix context caching
Comparable Foundation Architectures
Alternative foundation models with comparable intelligence benchmarks, context windows, and deployment profiles.
Claude Opus 4.7
Claude Opus 4.7 expands context to 400k tokens and incorporates multi-agent reasoning verification, pushing frontier AI science and formal theorem proving.
GPT-5.4
March 2026 foundation model standardizing 83.8% SWE-bench Verified coding precision, 500k context, and $3/$12 economics for enterprise agent automation.
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-5.4-pro',
messages: [{ role: 'user', content: 'Audit this cryptographic protocol for side-channel timing leaks.' }],
});
console.log(completion.choices[0].message.content);Frequently Asked Questions about GPT-5.4 Pro
Engineering specifications, VRAM sizing, commercial licensing terms, token economics, and empirical benchmark evaluations.
GPT-5.4 Pro resolves 87.2% of real-world GitHub issues on SWE-bench Verified.