Technology & AI
Fedor Zhilkin
Apr 20, 2026
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Updated on
Apr 20, 2026
A developer opens Codex and asks it to write a complex module from scratch. This used to require several iterations, clarifications, and manual fixes. ChatGPT 5.4 does it in one pass — because for the first time it combines the capabilities of a specialized code engine with universal reasoning in a single model. For professional work, this is a fundamental shift.
GPT 5.4 was released on March 5, 2026, and became the most significant update to the GPT-5 line since the original model launched in August 2025. Let's break down what changed, who needs it, and whether it's worth upgrading.
What Is GPT 5.4 and When Was It Released
OpenAI's new GPT-5.4 model is the flagship tool for professional work, released on March 5, 2026. OpenAI describes it as the first reasoning model in the main line that combined GPT-5.3-Codex capabilities with the universal intelligence of GPT-5.2. The result is a model that handles code, document analysis, spreadsheet work, and multi-step agentic tasks equally well.
ChatGPT 5.4's Place in the OpenAI Model Lineup
To understand GPT-5.4, it helps to look at the entire GPT-5 lineup as sequential development. Each release solved a specific problem, and GPT 5.4 became the logical conclusion of this cycle.
GPT-5 launched in August 2025 and introduced the concept of built-in thinking — the model learned to "think before responding." GPT-5.2 in December 2025 focused on professional work and agentic tools. GPT-5.3-Codex in February 2026 became a specialized code agent with the best development benchmarks. GPT-5.3 Instant on March 3, 2026, improved conversational tone and reduced unwarranted refusals. ChatGPT 5.4 on March 5, 2026, unified all of this in one model.
OpenAI called the new GPT 5.4 a "consolidation step" — not a revolution, but a merger of the best from several directions into a single tool for real professional work.
GPT-5.4 Variants: Thinking, Pro, mini, and nano
The model launched not as a single tool, but as a family with different variants for different tasks and budgets. This is important to understand when choosing a plan and budgeting for API usage.
GPT 5.4 Thinking — the main variant, available to Plus, Team, and Pro users. Replaced GPT-5.2 Thinking in the standard ChatGPT interface. Optimized for professional tasks with a balance of speed and quality.
ChatGPT 5.4 Pro — maximum performance for complex tasks. Available only to Pro and Enterprise subscribers. Supports a context window up to 1 million tokens and up to 128,000 output tokens.
GPT-5.4 mini launched on March 17, 2026. Available to free users through the Thinking feature in the menu. For paid users, it works as a fallback model when GPT 5.4 Thinking limits are reached.
GPT 5.4 nano is available only via API. The lightest and cheapest variant for embedding in products.
Key Improvements in GPT-5.4 Compared to Previous Versions
ChatGPT 5.4 didn't just become more accurate — it changed the approach to several fundamental use cases. Three areas stand out: code work, agentic capabilities, and research quality.
Built-in Code Capabilities from GPT-5.3-Codex
Before GPT 5.4, developers had to choose: universal GPT-5.2 for general tasks or specialized GPT-5.3-Codex for code. OpenAI's new model combined both training stacks in one model, eliminating the need to switch.
On the SWE-bench Verified benchmark, which tests real development tasks from GitHub, GPT 5.4 shows results on par with GPT-5.3-Codex while remaining a full-fledged universal model. OpenAI also notes that ChatGPT 5.4 uses significantly fewer tokens for reasoning tasks compared to GPT-5.2, reducing costs when working via API.
Native Computer Use and Agentic Tasks in ChatGPT 5.4
GPT-5.4 is the first general-purpose model from OpenAI with native computer control capabilities. This isn't an experimental feature but a full part of the model, available via API and Codex.
On the OSWorld-Verified benchmark, which evaluates the ability to work with desktop applications, GPT 5.4 scored 75% versus 47.3% for GPT-5.2. For comparison: the average human performs the same tasks at 72.4%. In practice, this means an agent based on ChatGPT-5.4 can independently open applications, fill out forms, work with browsers, and execute multi-step tasks in a real operating system without human involvement. The 1 million token context window allows agents to plan and execute long action chains without losing context.
Improved Deep Research and Tool Use in GPT 5.4
Beyond code and computer use, GPT-5.4 noticeably improved deep web search quality — especially for specific queries where previous versions gave vague answers.
The new tool search feature helps agents find and use the right tools from a large set without losing reasoning quality. OpenAI also added the ability to see the reasoning plan before the final answer — users can correct the direction mid-process without waiting for the complete result. This reduces iterations when working on complex tasks.
GPT-5.4 Thinking, Pro, mini, and nano: Which Variant to Choose
The GPT 5.4 family covers the full spectrum of users — from free tiers to enterprise solutions. The key distinction: Thinking and Pro aren't just different power levels of the same model. Pro is optimized for maximum performance on the most complex tasks and costs more; Thinking is for everyday professional work with a good balance of speed and quality.
Variant | Availability | Context | Best For |
GPT 5.4 Thinking | Plus, Team, Pro | Standard | Everyday professional work |
ChatGPT 5.4 Pro | Pro, Enterprise | 1M tokens | Complex tasks, maximum accuracy |
GPT 5.4 mini | Free, Go + fallback | Standard | Basic tasks, budget usage |
GPT-5.4 nano | API only | Compact | Product embedding, high volume |
For most ChatGPT Plus users, GPT 5.4 Thinking is the optimal choice. Upgrading to Pro makes sense when regularly working with very long documents or complex multi-step tasks where maximum accuracy is needed. GPT-5.4 mini is suitable for exploring the new model's capabilities without a paid subscription.
How to Get Access to GPT-5.4
Getting access to ChatGPT 5.4 is simpler than it seems: for most paid users, the transition already happened automatically. Let's break it down by plan and usage method.
ChatGPT 5.4 Availability by Subscription Tier
GPT 5.4 Thinking automatically replaced GPT-5.2 Thinking for Plus, Team, and Pro users — no additional action required. The model is available in the standard ChatGPT interface.
GPT 5.4 mini appeared on March 17, 2026, and is available to free users through the Thinking button in the input menu. This is the first GPT-5.4 variant available without payment. Enterprise and Edu users additionally have early activation available through admin settings. GPT-5.2 Thinking remains available in the Legacy Models section until June 5, 2026, for those who want to compare results.
GPT 5.4 API Access for Developers
All four new model variants are available via API. String identifiers: gpt-5.4, gpt-5.4-pro, gpt-5.4-mini, gpt-5.4-nano.
An important point for budget planning: when using a context window over 272,000 tokens, the price doubles for input tokens and increases 1.5x for output tokens. Regional data processing (data residency) adds a 10% surcharge. GPT-5.4 mini and nano via API cost four times more than their GPT-5 line equivalents — this is important to consider with high request volumes.
How to Use ChatGPT 5.4 for Analyzing Business Meetings with mymeet.ai
The GPT 5.4 model works well with text documents, analysis, and information synthesis. But for most business meeting tasks, you don't need to switch to ChatGPT at all — the AI chat inside mymeet.ai is built on GPT and works right in the dashboard.
mymeet.ai AI Chat: GPT Capabilities Inside the Dashboard
mymeet.ai automatically connects to meetings in Zoom, Google Meet, or Teams, records and transcribes speech with 96-98% accuracy, and creates a structured transcript with speaker separation. After the meeting, all of this is immediately available in the dashboard — and you can ask questions through AI chat without switching to external services.
The AI chat is built on GPT and knows the content of all your meetings from the archive. No need to export transcripts and upload them to ChatGPT 5.4 manually — just ask a question directly in mymeet.ai: "What objections did the client raise last week?", "What tasks from project X remain incomplete?", "Compare the outcomes of meetings with this client over the past month."
If a task specifically requires GPT 5.4 Pro with its 1 million token context — for example, deep analysis of dozens of transcripts at once — then exporting to ChatGPT makes sense. For most everyday tasks, the AI chat inside mymeet.ai covers everything needed.
✅ Automatic meeting recording in Zoom, Google Meet, Teams, Yandex.Telemost
✅ 96-98% transcription accuracy with speaker separation
✅ GPT-based AI chat right in the dashboard — no export to ChatGPT needed
✅ 11 AI report formats for different meeting types
✅ Integration with amoCRM and Bitrix24 (popular CRM systems)
✅ 180 minutes free, no credit card required
mymeet.ai and the new GPT 5.4 complement each other: the first handles meeting capture and structuring, the second comes in when you need to work beyond the meeting archive. But for most tasks, everything needed is already inside mymeet.ai.
GPT-5.4 Limitations: What to Consider
ChatGPT 5.4 is a powerful tool, but not without limitations. Understanding them helps use the model where it's genuinely useful and avoid disappointment where expectations are too high.
Despite the claimed 33% reduction in factual errors compared to GPT-5.2, hallucinations haven't disappeared. For tasks where accuracy is critical — legal documents, medical information, financial calculations — GPT 5.4 results always need verification.
GPT-5.4 mini and nano via API cost four times more than GPT-5 line equivalents. For high request volumes, this is a significant expense that should be budgeted before development begins. The knowledge cutoff date for all GPT 5.4 variants is August 2025. For queries about events after this date, the model relies on web search if enabled.
For companies with data localization requirements, this remains relevant. Standard processing happens on OpenAI servers outside local jurisdictions. Regional processing is available via API with a 10% surcharge, but may not fully address compliance requirements depending on your region's regulations.
Conclusion
GPT 5.4 isn't a revolution but an important consolidation step. OpenAI combined the best from several directions: GPT-5.3-Codex code capabilities, agentic functions, native computer use, and improved reasoning — in one model for professional work.
For most ChatGPT Plus users, the transition happened automatically: GPT 5.4 Thinking is now the default instead of GPT-5.2. For developers, the transition is deliberate — considering pricing changes and new agentic mode capabilities.
For working with business meetings, it's best to start with mymeet.ai: it handles automatic recording and initial analysis, and a GPT chat is already built into the service.
Frequently Asked Questions About GPT-5.4
When was GPT 5.4 released and what kind of model is it?
GPT-5.4 was released on March 5, 2026. It's OpenAI's flagship model for professional work, combining GPT-5.3-Codex capabilities with GPT-5.2's universal reasoning. The first main-line model with native computer use.
How does ChatGPT 5.4 differ from GPT-5.2?
Three main differences: built-in code capabilities at GPT-5.3-Codex level, native computer use (75% on OSWorld vs 47.3% for GPT-5.2), and 33% reduction in factual errors. Plus significantly lower token consumption for reasoning tasks.
Is ChatGPT 5.4 available for free?
GPT 5.4 Thinking and Pro are available only on paid tiers. GPT-5.4 mini has been available to free users since March 17, 2026, through the Thinking feature in the ChatGPT input menu.
What is GPT-5.4 Pro and how does it differ from Thinking?
ChatGPT 5.4 Pro offers maximum performance for the most complex tasks. The key difference: context window up to 1 million tokens versus standard for Thinking. Available only on Pro and Enterprise tiers.
How do I get GPT 5.4 in ChatGPT?
For Plus, Team, and Pro users, the model is already active by default instead of GPT-5.2 Thinking — no additional action needed. Free users can select GPT 5.4 mini through the Thinking button in the input menu.
What is computer use in GPT-5.4?
It's the model's ability to control a computer: open applications, work with browsers, fill out forms, execute multi-step tasks in a real operating system. ChatGPT 5.4 is the first general-purpose OpenAI model with native computer use capabilities.
How much does GPT 5.4 cost via API?
When using more than 272,000 context tokens, the price doubles for input and increases 1.5x for output. Regional processing adds a 10% surcharge. GPT 5.4 mini and nano via API cost four times more than GPT-5 line equivalents.
What is the knowledge cutoff date for ChatGPT 5.4?
August 2025 for all variants: Thinking, Pro, mini, and nano. For information about events after this date, the model uses web search when available.
Can GPT 5.4 be used for business meeting analysis?
The easiest way is through mymeet.ai: the service automatically records meetings and provides GPT-based AI chat right in the dashboard. For deep analysis of large meeting archives, transcripts can be exported and uploaded to GPT 5.4 Pro with its 1 million token context.
What are the limitations of GPT-5.4?
Despite improvements, hallucinations remain — results need verification for critical tasks. GPT-5.4 mini and nano via API cost 4x more than GPT-5 equivalents. Knowledge cutoff is August 2025. Data is processed on OpenAI servers, which may create compliance considerations depending on your jurisdiction.
Fedor Zhilkin
Apr 20, 2026
