OpenAI GPT
OpenAI
OpenAI recommends GPT-5.5 as its flagship model for complex reasoning, coding, and professional work. GPT-5.4, GPT-5.4-mini, and GPT-5.4-nano remain useful lower-cost choices when latency and price matter more than maximum capability.
chatgpt.comLast updated: May 5, 2026
$2.50/M
GPT-5.5 Input
1M
Context Window
128K
Max Output
Tools
Functions, Search, Files
Available Models
| Model | Input $/1M | Output $/1M | Context | Best For |
|---|---|---|---|---|
| GPT-5.5 (flagship) | $5.00 | $30.00 | 1M | Complex reasoning, coding, professional work |
| GPT-5.4 | $2.50 | $15.00 | 1M | More affordable coding and professional work |
| GPT-5.4-mini | $0.75 | $4.50 | 400K | High-volume chat, lightweight tasks |
| GPT-5.4-nano | $0.20 | $1.25 | 400K | Edge inference, classification |
| o3 (reasoning) | $10.00 | $40.00 | 200K | Deep reasoning, math, science |
| o4-mini | $1.10 | $4.40 | 200K | Fast reasoning at lower cost |
Consumer Plans
| Plan | Price | Includes |
|---|---|---|
| Free | $0/mo | Limited ChatGPT model access |
| Go | $8/mo | Expanded ChatGPT access in supported regions |
| Plus | $20/mo | Higher limits, tools, and advanced ChatGPT features |
| Pro | $200/mo | Highest individual limits and access to advanced models/tools |
| Business | $25/user/mo | Team features, admin controls |
Strengths & Weaknesses
Strengths
- Flagship model for complex reasoning and coding
- 1M token context window
- 5-level reasoning control (none to xhigh)
- Supports functions, web search, file search, and computer use tools
- Multimodal: text and image input with text output
Weaknesses
- Can be verbose on simple queries
- Premium flagship pricing is higher than GPT-5.4, mini, and nano variants
- Pro variant pricing is steep ($200/mo)
Best For
- Professional workflows and complex reasoning
- Computer use and autonomous subagents
- Realtime voice and image generation
- High-volume production with nano/mini tiers
- Multi-modal applications (vision + audio + text)
Latest Release NEW
GPT-5.5 — May 2026
- 1M token context window and 128K max output
- Designed for complex reasoning, coding, and professional workflows
- 5-level reasoning control from quick answers to deep analysis
- Native coding improvements with built-in code execution
- LMSYS Arena Elo ~1495 — top-tier across benchmarks
Previous Releases
GPT-5.3 Codex — January 2026
- Code-specialized variant with enhanced software engineering capabilities
- Introduced multi-step tool use for complex coding tasks
- Predecessor to the GPT-5.4 and GPT-5.5 coding-focused lineup
GPT-4o — May 2024
- First natively multimodal GPT model — text, image, audio in one model
- Significantly faster and cheaper than GPT-4 Turbo
- Still widely used in production and available via API