GPT-5.4 vs o3 Pro (Comparative Analysis)
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Overview
o3 Pro was released 8 months before GPT-5.4.
 GPT-5.4 | o3 Pro | |
|---|---|---|
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 | June 10, 2025 1 year ago June 10th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | June 30, 2024 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
GPT-5.4 | o3 Pro | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image📁File | 📝Text📁File🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | OptionalEffort: Extra High, High, Medium, Low, NoneDefault: Medium | Optional |
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 0.1x less expensive compared to o3 Pro for input tokens and roughly 0.2x less expensive for output tokens.
| GPT-5.4 | o3 Pro | |
|---|---|---|
Short Context Pricing Base rates before a long-context threshold applies | ||
Input Token Cost Cost per million input tokens | $2.50 per million tokens | $20.00 per million tokens |
Output Token Cost Cost per million output tokens | $15.00 per million tokens | $80.00 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 | Not specified |
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 Pro.
| GPT-5.4 | o3 Pro | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 51.4 (Artificial Analysis index; higher is better) | Benchmark not available. |
Coding Index Programming performance across independent evaluations | 71.1 (Artificial Analysis index; higher is better) | Benchmark not available. |
Agentic Index Ability to complete multi-step agentic tasks | 41.1 (Artificial Analysis index; higher is better) | Benchmark not available. |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,296 Elo (#19 in Game Dev (57.6% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes GPT-5.4 and o3 Pro 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 Pro 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 200K token context window. Premium pricing at $20.00/M input and $80.00/M output tokens. Includes built-in content moderation for safer outputs. Released June 10th, 2025.Explore More Comparisons
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