Model catalogue

GPT-6 Astra

OpenAI

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...

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1.1M

In

$10.00/M

Out

$50.00/M

GPT-6 Astra Pro

OpenAI

GPT-6 Astra Pro is the same underlying model as [GPT-6 Astra](https://openrouter.ai/openai/gpt-6-astra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

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1.1M

In

$10.00/M

Out

$50.00/M

GPT-5.6 Luna Pro

OpenAI

GPT-5.6 Luna Pro is the same underlying model as [GPT-5.6 Luna](https://openrouter.ai/openai/gpt-5.6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

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1.1M

In

$0.20/M

Out

$1.20/M

GPT-5.6 Luna

OpenAI

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...

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1.1M

In

$0.20/M

Out

$1.20/M

GPT-5.6 Terra Pro

OpenAI

GPT-5.6 Terra Pro is the same underlying model as [GPT-5.6 Terra](https://openrouter.ai/openai/gpt-5.6-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

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1.1M

In

$2.00/M

Out

$12.00/M

GPT-5.6 Terra

OpenAI

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...

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1.1M

In

$2.00/M

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$12.00/M

GPT-5.6 Sol Pro

OpenAI

GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

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1.1M

In

$2.00/M

Out

$10.00/M

GPT-5.6 Sol

OpenAI

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...

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1.1M

In

$2.00/M

Out

$10.00/M

GPT Chat Latest

OpenAI

GPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...

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400K

In

$5.00/M

Out

$30.00/M

GPT-5.5 Pro

OpenAI

GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...

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1.1M

In

$30.00/M

Out

$180.00/M

GPT-5.5

OpenAI

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...

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1.1M

In

$5.00/M

Out

$30.00/M

GPT-5.4 Image 2

OpenAI

[GPT-5.4](https://openrouter.ai/openai/gpt-5.4) Image 2 combines OpenAI's GPT-5.4 model with state-of-the-art image generation capabilities from GPT Image 2. It enables rich multimodal workflows, allowing users to seamlessly move between reasoning, coding, and...

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272K

In

$8.00/M

Out

$15.00/M

GPT-5.4 Pro

OpenAI

GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...

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1.1M

In

$30.00/M

Out

$180.00/M

GPT-5.4

OpenAI

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...

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1.1M

In

$2.50/M

Out

$15.00/M

GPT-5.3-Codex

OpenAI

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...

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400K

In

$1.75/M

Out

$14.00/M

GPT Audio

OpenAI

The gpt-audio model is OpenAI's first generally available audio model. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Audio is priced...

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128K

In

$2.50/M

Out

$10.00/M

GPT-5.2-Codex

OpenAI

GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....

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400K

In

$1.75/M

Out

$14.00/M

GPT-5.2 Chat

OpenAI

GPT-5.2 Chat (AKA Instant) is the fast, lightweight member of the 5.2 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...

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128K

In

$1.75/M

Out

$14.00/M

GPT-5.2 Pro

OpenAI

GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro. It is optimized for complex tasks that require step-by-step reasoning,...

Context

400K

In

$21.00/M

Out

$168.00/M

GPT-5.2

OpenAI

GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1. It uses adaptive reasoning to allocate computation dynamically, responding quickly...

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400K

In

$1.75/M

Out

$14.00/M

GPT-5.1-Codex-Max

OpenAI

GPT-5.1-Codex-Max is OpenAI’s latest agentic coding model, designed for long-running, high-context software development tasks. It is based on an updated version of the 5.1 reasoning stack and trained on agentic...

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400K

In

$1.25/M

Out

$10.00/M

GPT-5.1

OpenAI

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...

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400K

In

$1.25/M

Out

$10.00/M

GPT-5.1-Codex

OpenAI

GPT-5.1-Codex is a specialized version of GPT-5.1 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....

Context

400K

In

$1.25/M

Out

$10.00/M

gpt-oss-safeguard-20b

OpenAI

gpt-oss-safeguard-20b is a safety reasoning model from OpenAI built upon gpt-oss-20b. This open-weight, 21B-parameter Mixture-of-Experts (MoE) model offers lower latency for safety tasks like content classification, LLM filtering, and trust...

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131K

In

$0.07/M

Out

$0.30/M

GPT-5 Image

OpenAI

[GPT-5](https://openrouter.ai/openai/gpt-5) Image combines OpenAI's GPT-5 model with state-of-the-art image generation capabilities. It offers major improvements in reasoning, code quality, and user experience while incorporating GPT Image 1's superior instruction following,...

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400K

In

$10.00/M

Out

$10.00/M

GPT-5 Pro

OpenAI

GPT-5 Pro 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...

Context

400K

In

$15.00/M

Out

$120.00/M

GPT-5

OpenAI

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...

Context

400K

In

$1.25/M

Out

$10.00/M

gpt-oss-120b

OpenAI

gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized...

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131K

In

$0.04/M

Out

$0.17/M

gpt-oss-20b

OpenAI

gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...

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131K

In

$0.03/M

Out

$0.13/M

o3 Pro

OpenAI

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...

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200K

In

$20.00/M

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$80.00/M

o3

OpenAI

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....

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200K

In

$2.00/M

Out

$8.00/M

GPT-4.1

OpenAI

GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...

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1.0M

In

$2.00/M

Out

$8.00/M

o1-pro

OpenAI

The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide...

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200K

In

$150.00/M

Out

$600.00/M

o1

OpenAI

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...

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200K

In

$15.00/M

Out

$60.00/M

GPT-4o (2024-11-20)

OpenAI

The 2024-11-20 version of GPT-4o offers a leveled-up creative writing ability with more natural, engaging, and tailored writing to improve relevance & readability. It’s also better at working with uploaded...

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128K

In

$2.50/M

Out

$10.00/M

GPT-4o (2024-08-06)

OpenAI

The 2024-08-06 version of GPT-4o offers improved performance in structured outputs, with the ability to supply a JSON schema in the respone_format. Read more [here](https://openai.com/index/introducing-structured-outputs-in-the-api/). GPT-4o ("o" for "omni") is...

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128K

In

$2.50/M

Out

$10.00/M

GPT-4o

OpenAI

GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...

Context

128K

In

$2.50/M

Out

$10.00/M

GPT-4o (2024-05-13)

OpenAI

GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...

Context

128K

In

$5.00/M

Out

$15.00/M

GPT-4 Turbo

OpenAI

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.

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128K

In

$10.00/M

Out

$30.00/M

GPT-3.5 Turbo Instruct

OpenAI

This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021.

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4K

In

$1.50/M

Out

$2.00/M

GPT-3.5 Turbo 16k

OpenAI

This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up...

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16K

In

$3.00/M

Out

$4.00/M

GPT-3.5 Turbo

OpenAI

GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.

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16K

In

$0.50/M

Out

$1.50/M

GPT-4

OpenAI

OpenAI's flagship model, GPT-4 is a large-scale multimodal language model capable of solving difficult problems with greater accuracy than previous models due to its broader general knowledge and advanced reasoning...

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8K

In

$30.00/M

Out

$60.00/M

GPT-5.4 Nano

OpenAI

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...

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400K

In

$0.20/M

Out

$1.25/M

GPT-5.4 Mini

OpenAI

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,...

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400K

In

$0.75/M

Out

$4.50/M

GPT Audio Mini

OpenAI

A cost-efficient version of GPT Audio. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Input is priced at $0.60 per million...

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128K

In

$0.60/M

Out

$2.40/M

GPT-5.1-Codex-Mini

OpenAI

GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex

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400K

In

$0.25/M

Out

$2.00/M

GPT-5 Image Mini

OpenAI

GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by [GPT-5 Mini](https://openrouter.ai/openai/gpt-5-mini), with GPT Image 1 Mini for efficient image generation. This natively multimodal model features superior instruction following, text...

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400K

In

$2.50/M

Out

$2.00/M