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Key Highlights

  • Most Powerful Professional Model: GPT-5.4 outperforms office workers 83% of the time on professional tasks including document creation, spreadsheet analysis, and presentation design
  • Native Computer Use: OpenAI’s first general-purpose model with native, state-of-the-art computer-use capabilities in Codex and API
  • Million-Token Context: API version supports up to 1.05M token context window, OpenAI’s largest ever
  • Fewer Errors: 33% fewer errors in individual claims, 18% fewer errors in overall responses compared to GPT-5.2
  • Three Variants: Standard (GPT-5.4), Thinking (deep analysis), Pro (high-performance enterprise)

Background

On March 5, 2026, OpenAI officially launched the GPT-5.4 model series, its most capable and efficient frontier model designed for professional work. This release comes less than a month after GPT-5.3, marking OpenAI’s accelerated model iteration cadence. GPT-5.4 is positioned as the flagship model for enterprise-grade professional tasks, achieving breakthroughs in document processing, spreadsheet analysis, code generation, and autonomous agents. The GPT-5.4 series includes three variants:
  • GPT-5.4 (Standard): General-purpose flagship for everyday and professional tasks
  • GPT-5.4 Thinking: Deep analysis and multi-step problem reasoning
  • GPT-5.4 Pro: High-performance enterprise variant optimized for scale
API易 has immediately launched all GPT-5.4 variants at pricing identical to OpenAI’s official rates, with 10%+ deposit bonus starting from $100.

Detailed Analysis

Core Features

Professional Excellence

Outperforms office workers 83% of the time on documents, spreadsheets, and presentations

Native Computer Use

OpenAI’s first general-purpose model with native computer-use capabilities for multi-step workflows

Million-Token Context

API supports up to 1.05M token context window, OpenAI’s largest ever

Higher Accuracy

33% fewer claim errors, 18% fewer response errors, more reliable outputs

Performance Highlights

GPT-5.4 series demonstrates exceptional performance across multiple benchmarks:
BenchmarkGPT-5.4 / ProGPT-5.2Notes
GDPval (Professional)83%70.9%Outperforms human office workers
SWE-Bench Pro57.7%55.6%Real-world software engineering
OSWorld-Verified (Computer Use)75%-Computer use benchmark
APEX-Agents#1-Professional services agent benchmark
WebArena Verified#1-Web operation benchmark
Data source: OpenAI official blog (March 5, 2026), TechCrunch, VentureBeat, and other authoritative media reports.
Professional Work Capability:
  • GDPval 83%: Outperforms human office workers in 83% of professional knowledge tasks
  • Excels at document creation, spreadsheet analysis, presentation design
  • Financial plugins for Microsoft Excel and Google Sheets
Computer Use Capability:
  • OpenAI’s first general-purpose model with native computer-use in Codex and API
  • 75% on OSWorld-Verified benchmark
  • Supports multi-step cross-application automated workflows
Coding & Agent Capability:
  • SWE-Bench Pro reaches 57.7%, continuous improvement
  • Ranks #1 on both APEX-Agents and WebArena Verified
  • Significantly improved token efficiency, solving same problems with fewer tokens
Accuracy Improvement:
  • 33% fewer errors in individual claims vs GPT-5.2
  • 18% fewer errors in overall responses

Technical Specifications

ParameterGPT-5.4GPT-5.4 Pro
Context Length1,050,000 tokens1,050,000 tokens
Input Price$2.50 / 1M tokens$30.00 / 1M tokens
Output Price$15.00 / 1M tokens$180.00 / 1M tokens
Long Context Input (over 272K)$5.00 / 1M tokens$60.00 / 1M tokens
Long Context Output (over 272K)$22.50 / 1M tokens$270.00 / 1M tokens
For prompts with over 272K input tokens, input is priced at 2x and output at 1.5x for the full session.

Variant Comparison

VariantPositioningUse CasesCore Advantage
GPT-5.4General FlagshipDaily professional tasks, document processingBalance of performance and cost
GPT-5.4 ThinkingDeep ReasoningComplex analysis, multi-step reasoningStrong analytical capability
GPT-5.4 ProEnterpriseHigh-performance scaled applicationsFast, high throughput

Practical Applications

GPT-5.4 series, with native computer use, exceptional professional capability, and million-token context, is particularly suitable for:
  1. Enterprise Office Automation: Document creation, spreadsheet analysis, presentation design
  2. Software Engineering: Code generation, bug fixing, autonomous coding agents
  3. Deep Research: Long document analysis, cross-source research, data mining
  4. Autonomous Agent Workflows: Computer use, multi-step cross-application automation
  5. Financial Data Processing: Excel/Sheets financial plugins, report generation

Code Examples

Standard Usage

from openai import OpenAI

client = OpenAI(
    api_key="your-apiyi-key",
    base_url="https://api.apiyi.com/v1"
)

# Use GPT-5.4 standard version
response = client.chat.completions.create(
    model="gpt-5.4",
    messages=[
        {
            "role": "user",
            "content": "Analyze this quarterly financial report, generate key metrics summary and trend predictions..."
        }
    ],
    max_tokens=8192
)

print(response.choices[0].message.content)

Using GPT-5.4 Pro

# Use GPT-5.4 Pro for high-performance enterprise tasks
response = client.chat.completions.create(
    model="gpt-5.4-pro",
    messages=[
        {
            "role": "user",
            "content": "Design a complete microservices architecture with service discovery, load balancing, circuit breaker, and distributed tracing..."
        }
    ],
    max_tokens=16384
)

print(response.choices[0].message.content)

Best Practices

  1. Choose the Right Variant:
    • GPT-5.4: Daily professional tasks, balance of performance and cost
    • GPT-5.4 Thinking: Complex problems requiring deep reasoning
    • GPT-5.4 Pro: Enterprise high-throughput applications
  2. Leverage Million-Token Context:
    • 1M token context supports entire codebases or multiple long documents
    • Note pricing adjustments beyond 272K tokens
  3. Utilize Computer Use Capability:
    • Build autonomous agents through Codex and API
    • Implement cross-application multi-step automated workflows

Pricing & Availability

Pricing Information

Fee TypeGPT-5.4GPT-5.4 ProGPT-5.2Change
Input$2.50 / 1M tokens$30.00 / 1M tokens$1.75 / 1M tokens+43%
Output$15.00 / 1M tokens$180.00 / 1M tokens$14.00 / 1M tokens+7%
GPT-5.4 input price increased 43% vs GPT-5.2, but output price only increased 7%. Pro is OpenAI’s most expensive model but also the most capable for professional tasks.
Competitor Price Comparison:
ModelInput PriceOutput PricePositioning
GPT-5.4$2.50$15.00Professional Flagship
GPT-5.4 Pro$30.00$180.00Enterprise
Claude Opus 4.5$5.00$25.00Coding Flagship
Gemini 3 Pro$2.00$12.00Multimodal
GPT-5.2$1.75$14.00Previous Flagship

Promotion

View Latest Deposit Bonus Policy

API易 offers deposit bonus promotions starting from 10% bonus on $100+ deposits. Pricing matches official rates, with actual costs reduced through deposit bonuses.

Available Models

Model NameVariantDescription
gpt-5.4StandardGeneral flagship, suitable for most professional scenarios
gpt-5.4-proProHigh-performance enterprise variant

Purchase Channels

API易 Platform:
  • Website: apiyi.com
  • API Endpoint: https://api.apiyi.com/v1
  • Supports OpenAI-compatible format
  • Compatible with all OpenAI SDKs

Summary & Recommendations

GPT-5.4 series marks OpenAI’s comprehensive breakthrough in professional work. Native computer use, million-token context, and 83% human-surpassing professional performance make it the top choice for enterprise applications. Core Advantages:
  • Professional Champion: Outperforms 83% of office workers
  • Native Computer Use: First general-purpose model with native CUA
  • Million-Token Context: 1.05M tokens, OpenAI’s largest
  • Fewer Errors: 18-33% error rate reduction
Usage Recommendations:
  1. Daily Professional Tasks: Use GPT-5.4 standard, balanced performance and cost
  2. Deep Analysis: Use GPT-5.4 Thinking for complex problems
  3. Enterprise Applications: Use GPT-5.4 Pro for high throughput and low latency
  4. Cost-Sensitive: GPT-5.2 remains the value choice
Who Should Use GPT-5.4:
  • Enterprise users automating office workflows
  • Developers building autonomous agents and workflows
  • Professionals processing ultra-long documents and codebases
  • Researchers seeking highest accuracy
API易 has fully launched GPT-5.4 series at official pricing, with 10%+ deposit bonus from $100. Experience OpenAI’s most powerful professional model now!
Information sources: OpenAI official blog (March 5, 2026), TechCrunch, VentureBeat, Axios, Fortune, and other authoritative media reports. Data retrieved: March 6, 2026.