GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Models
Every model in the catalog with source-linked pricing, context limits, provider availability, and published benchmark results.
Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon...
GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
Balanced GPT-5.6 model for capable, cost-efficient everyday work
Default frontier GPT for coding, computer use, research, and knowledge work
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Cost-efficient GPT-5.6 model for fast, high-volume workloads
GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...
Agent-ready GPT for coding and computer-use workflows at a lower cost
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
Cheapest GPT-5.4 lane for simple routing, extraction, and bulk automation
Strong small GPT for coding subagents, quick tool use, and high-volume work
GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads. It supports text and image inputs with strong performance across reasoning, coding,...
GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...
Sharper GPT-5 generation for coding, product work, and tool-assisted tasks
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason...
O-series reasoning model for hard analysis, math, coding, and planning
GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy...
Original GPT-5 workhorse for reasoning, coding, writing, and tool workflows
GPT model for general reasoning, writing, coding, and tool-assisted tasks
The latest GPT-4 Turbo model with vision capabilities. Vision requests can now use JSON mode and function calling. Training data: up to December 2023.
Compact GPT model for low-latency assistance and high-volume workloads
Affordable GPT-4.1 lane for fast coding help and structured extraction
GPT-4.1 Mini is a mid-sized model delivering performance competitive with GPT-4o at substantially lower latency and cost. It retains a 1 million token context window and scores 45.1% on hard...
Small GPT-5 for responsive agents, coding help, and everyday automation
GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost....
Small omni GPT for cheap multimodal assistance and production-scale traffic
GPT-4o mini is OpenAI's newest model after [GPT-4 Omni](/models/openai/gpt-4o), supporting both text and image inputs with text outputs. As their most advanced small model, it is many multiples more affordable...
For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million...
Tiny GPT-4.1 option for classification, routing, and very high-volume tasks
| Model | Creator | Score | Inputs | Context | Input | Output | Released | Compare |
|---|---|---|---|---|---|---|---|---|
| OpenAI: GPT-5.6 Sol (batch)openai/gpt-5.6-sol:batch | 77.4 | 1.05M | $1 | $5 | — | |||
| GPT-5.6 Solopenai/gpt-5.6-sol | 77.4 | 1.05M | $4 | $20 | 2026-07-09 | |||
| OpenAI: GPT-6 Astra (batch)openai/gpt-6-astra:batch | 76.9 | 1.05M | $5 | $25 | — | |||
| GPT-6 Astraopenai/gpt-6-astra | 76.9 | 1.05M | $10 | $50 | 2026-09-04 | |||
| OpenAI: GPT-5.6 Terra (batch)openai/gpt-5.6-terra:batch | 76.7 | 1.05M | $1 | $6 | — | |||
| GPT-5.6 Terraopenai/gpt-5.6-terra | 76.7 | 1.05M | $2 | $12 | 2026-07-09 | |||
| GPT-5.5openai/gpt-5.5 | 74.9 | 1.05M | $5 | $30 | 2026-04-23 | |||
| OpenAI: GPT-5.5 (batch)openai/gpt-5.5:batch | 74.9 | 1.05M | $2.5 | $15 | — | |||
| GPT-5.6 Lunaopenai/gpt-5.6-luna | 71.4 | 1.05M | $0.2 | $1.2 | 2026-07-09 | |||
| OpenAI: GPT-5.6 Luna (batch)openai/gpt-5.6-luna:batch | 71.4 | 1.05M | $0.1 | $0.6 | — | |||
| GPT-5.4openai/gpt-5.4 | 71.1 | 1.05M | $2.5 | $15 | 2026-03-05 | |||
| OpenAI: GPT-5.4 (batch)openai/gpt-5.4:batch | 71.1 | 1.05M | $1.25 | $7.5 | — | |||
| GPT-5.4 nanoopenai/gpt-5.4-nano | 56.1 | 400K | $0.2 | $1.25 | 2026-03-17 | |||
| GPT-5.4 miniopenai/gpt-5.4-mini | 56.1 | 400K | $0.75 | $4.5 | 2026-03-17 | |||
| OpenAI: GPT-5.4 Mini (batch)openai/gpt-5.4-mini:batch | 56.1 | 400K | $0.375 | $2.25 | — | |||
| OpenAI: GPT-5.4 Nano (batch)openai/gpt-5.4-nano:batch | 56.1 | 400K | $0.1 | $0.625 | — | |||
| GPT-5.1openai/gpt-5.1 | 49.4 | 400K | $1.25 | $10 | 2025-11-13 | |||
| OpenAI: GPT-5.1 (batch)openai/gpt-5.1:batch | 49.4 | 400K | $0.625 | $5 | — | |||
| OpenAI: o1 (batch)openai/o1:batch | 39.7 | 200K | $7.5 | $30 | — | |||
| o1openai/o1 | 39.7 | 200K | $15 | $60 | 2024-12-05 | |||
| OpenAI: GPT-5 (batch)openai/gpt-5:batch | 37.8 | 400K | $0.625 | $5 | — | |||
| GPT-5openai/gpt-5 | 37.8 | 400K | $1.25 | $10 | 2025-08-07 | |||
| GPT-4o (2024-05-13)openai/gpt-4o-2024-05-13 | 24.2 | 128K | $5 | $15 | 2024-05-13 | |||
| OpenAI: GPT-4 Turbo (batch)openai/gpt-4-turbo:batch | 21.5 | 128K | $5 | $15 | — | |||
| GPT-4 Turboopenai/gpt-4-turbo | 21.5 | 128K | $10 | $30 | 2023-11-06 | |||
| GPT-4.1 miniopenai/gpt-4.1-mini | 20.2 | 1.04758M | $0.4 | $1.6 | 2025-04-14 | |||
| OpenAI: GPT-4.1 Mini (batch)openai/gpt-4.1-mini:batch | 20.2 | 1.04758M | $0.2 | $0.8 | — | |||
| GPT-5 Miniopenai/gpt-5-mini | 15.6 | 400K | $0.25 | $2 | 2025-08-07 | |||
| OpenAI: GPT-5 Mini (batch)openai/gpt-5-mini:batch | 15.6 | 400K | $0.125 | $1 | — | |||
| GPT-4o miniopenai/gpt-4o-mini | 11.4 | 128K | $0.15 | $0.6 | 2024-07-18 | |||
| OpenAI: GPT-4o-mini (batch)openai/gpt-4o-mini:batch | 11.4 | 128K | $0.075 | $0.3 | — | |||
| OpenAI: GPT-4.1 Nano (batch)openai/gpt-4.1-nano:batch | 11.1 | 1.04758M | $0.05 | $0.2 | — | |||
| GPT-4.1 nanoopenai/gpt-4.1-nano | 11.1 | 1.04758M | $0.1 | $0.4 | 2025-04-14 |