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HomeOpenAIAll changesGPT-5.4 nano - cheapest GPT-5.4-class model added
OpenAIPackaging change · New plan · Plan renamed · Mar 16 → Mar 23, 2026

OpenAI API triples GPT-5 mini pricing, launches budget nano tier

Verified Mar 26, 2026AI & Machine LearningDirection: up
The changeGPT-5.4 nano - cheapest GPT-5.4-class model — added.
Before · Mar 16Not listed
After · Mar 23GPT-5.4 nano - cheapest GPT-5.4-class model
added
2 changes2 capturesMar 16, 2026 → Mar 23, 2026

What happened

Between the Mar 16, 2026 and Mar 23, 2026 captures of OpenAI's pricing page, Pulse recorded 2 changes: Added GPT-5.4 nano - cheapest GPT-5.4-class model for simple high-volume tasks [$0.20/1M input; $0.02/1M cached; $1.25/1M output tokens]; GPT-5 mini renamed to GPT-5.4 mini with 3x input/cached price increases and 2.25x output increase [New positioning: 'strongest mini model yet for coding, computer use, and subagents'; Input $0.250->$0.750/1M; Cached $0.025->$0.075/1M; Output $2.000->$4.500/1M tokens]. Pulse files it as a packaging change (new plan, plan renamed) with an upward direction. Pulse's latest capture (Oct 5, 2026) lists gpt-image-2.5-flare at $2 per 1M cached image input tokens + $30 per 1M image output tokens, gpt-6.1-sol at $0.2 per 1M cached input tokens (long context) + $2 per 1M input tokens (short context), gpt-6-luna at $0.25 per 1M cache write tokens (long context) + $0.2 per 1M input tokens (long context), gpt-5.6-sol at $30 per 1M output tokens (long context) + $8 per 1M input tokens (long context) and gpt-6-astra at $20 per 1M input tokens (long context) + $1 per 1M cached input tokens (short context).

OpenAI's previous recorded change was "Openai API launches GPT-5.4 at $2.50/M tokens, adds Containers tool" (Apr 6, 2026). Before that Pulse recorded "Openai API adds Sora-2-pro HD video tier at $0.70/second" (Mar 18, 2026), "Openai API launches GPT-5.4, adds 10% data residency surcharge" (Mar 11, 2026) and "Openai API shifts Containers to per-session billing starting March 31" (Feb 18, 2026). OpenAI has been tracked since 2023-11-14.

In the same window Anthropic, Metabase, X and Microsoft also changed their AI & Machine Learning pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.

  • — · PlanAdded

    BeforeNot listed

    AfterGPT-5.4 nano - cheapest GPT-5.4-class model

  • — · Plan+200%
    $0.250$0.750

Values as written on OpenAI's public pricing page in the two captures Pulse compared; where the page states no number, the cells give the wording before and after.

Evidence

The two captures Pulse compared

Full-page captures of OpenAI's pricing page (openai.com) from Mar 16, 2026 and Mar 23, 2026; the change is marked near the top of the page, where GPT-5.4 nano - cheapest GPT-5.4-class model now appears.

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The two full-page captures with this change marked up are free with an account.

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OpenAI, the last 90 days

Full history
  1. May 11, 2026increaseOpenai API raises GPT-Realtime-2 text output 50%, adds translate
  2. Apr 27, 2026decreaseOpenai API cuts image output pricing, launches GPT-image-2
  3. Apr 2, 2026decreaseOpenai API slashes web search tool price 60% to $10 per 1k calls
  4. Mar 24, 2026packagingOpenAI API triples GPT-5 mini pricing, launches budget nano tier · this change
  5. Apr 6, 2026packagingOpenai API launches GPT-5.4 at $2.50/M tokens, adds Containers tool
  6. Mar 18, 2026improvedOpenai API adds Sora-2-pro HD video tier at $0.70/second
  7. Mar 11, 2026packagingOpenai API launches GPT-5.4, adds 10% data residency surcharge
  8. Feb 18, 2026increaseOpenai API shifts Containers to per-session billing starting March 31
  9. Jan 12, 2026packagingOpenai API Implements 40% Price Increase for GPT-5.2 Output and Input Tokens, Renames GPT-5 to GPT-5.2

Across AI & Machine Learning in the same window

All AI & Machine Learning changes
  1. AnthropicMar 16Anthropic API simplifies pricing, removes volume-based tiers
  2. MetabaseFeb 23Metabase reveals Advanced Transforms add-on at $250/mo for 72K runs
  3. XFeb 18X adds real-time voice AI, drops structured outputs from API
  4. MicrosoftJan 20Microsoft Copilot Transforms Copilot Pro into Family-Oriented 365 Premium Subscription with Enhanced AI Features and Increased Cloud Storage

Questions about this change

Did OpenAI raise prices in March 2026?

No list-price increase was recorded between Mar 16, 2026 and Mar 23, 2026. The change Pulse detected was a packaging change: new plan, plan renamed.

What changed on OpenAI's pricing page between Mar 16, 2026 and Mar 23, 2026?

Plan: Not listed → GPT-5.4 nano - cheapest GPT-5.4-class model, added; plan: $0.250 → $0.750 (+200%). Pulse compared the captures it took on Mar 16, 2026 and Mar 23, 2026; the before/after table above lists each item as written on the page.

How often does OpenAI change its pricing?

Pulse recorded 4 other pricing-page changes for OpenAI in the 90 days before this one; the previous change was "Openai API launches GPT-5.4 at $2.50/M tokens, adds Containers tool" on Apr 6, 2026; OpenAI has been tracked since 2023-11-14.