GPT-5.4 vs o3 Mini High (Comparative Analysis)
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Comparative Analysis: GPT-5.4 vs. o3 Mini High
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Overview
o3 Mini High was released 1 year before GPT-5.4.
 GPT-5.4 | o3 Mini High | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenAI | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 1.1M tokens | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 128K tokens | 100K tokens |
Release Date When this model first became publicly available | March 5, 2026 4 months ago March 5th, 2026 | February 12, 2025 1 year ago February 12th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | October 31, 2023 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
GPT-5.4 | o3 Mini High | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image📁File | 📝Text📁File |
Reasoning Controls Defaults and configurable reasoning effort | OptionalEffort: Extra High, High, Medium, Low, NoneDefault: Medium | Always enabledEffort: HighDefault: High |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | GPT | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation |
Pricing
GPT-5.4 is roughly 2.3x more expensive compared to o3 Mini High for input tokens and roughly 3.4x more expensive for output tokens.
| GPT-5.4 | o3 Mini High | |
|---|---|---|
Short Context Pricing Base rates before a long-context threshold applies | ||
Input Token Cost Cost per million input tokens | $2.50 per million tokens | $1.10 per million tokens |
Output Token Cost Cost per million output tokens | $15.00 per million tokens | $4.40 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.01 per search | $0.01 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.25 per million tokens | $0.55 per million tokens |
Long Context Pricing Rates for prompts with 272,000 or more tokens | ||
Input Token Cost Long-context input cost per million tokens | $5.00 per million tokens | Not specified |
Output Token Cost Long-context output cost per million tokens | $22.50 per million tokens | Not specified |
Cache Read Cost Long-context cache read cost per million tokens | $0.50 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between GPT-5.4 and o3 Mini High.
| GPT-5.4 | o3 Mini High | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 51.4 (Artificial Analysis index; higher is better) | 15.6 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 71.1 (Artificial Analysis index; higher is better) | 16.3 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 41.1 (Artificial Analysis index; higher is better) | 1.7 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,298 Elo (#17 in Game Dev (57.8% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes GPT-5.4 and o3 Mini High unique.
GPT-5.4 by OpenAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1.1M token context window. Premium pricing at $2.50/M input and $15.00/M output tokens. Released March 5th, 2026.o3 Mini High by OpenAI can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Reasonably priced at $1.10/M input and $4.40/M output tokens. Includes built-in content moderation for safer outputs. Released February 12th, 2025.Explore More Comparisons
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Compare o3 Mini High with:
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Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
🌐Translation
Multilingual translation tasks