LLM prices per 1M tokens

264 models · 161 price changes

OpenAI

Model lab · 61 models · also sold by 29 other providers · openai.com

OpenAI models

In / out per 1M
GPT-6.1 Terra
1.05MCheapest: $1 on OpenAI (flex)
$1 / $5GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol.
GPT-6.1 Terra Pro
1.05MCheapest: $1 on OpenAI (flex)
$1 / $5GPT-6.1 Terra Pro is the same underlying model as GPT-6.1 Terra, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
GPT-6.1 Sol
1.05MCheapest: $2 on OpenAI (flex)
$2 / $10GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series.
GPT-6.1 Sol Pro
1.05MCheapest: $2 on OpenAI (flex)
$2 / $10GPT-6.1 Sol Pro is the same underlying model as GPT-6.1 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
GPT-6 Luna
1.05MCheapest: $0.1 on OpenAI (flex)
$0.1 / $0.5GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol.
GPT-6 Luna Pro
1.05MCheapest: $0.1 on OpenAI (flex)
$0.1 / $0.5GPT-6 Luna Pro is the same underlying model as GPT-6 Luna, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
GPT-6 Sol
1.05MCheapest: $2 on OpenAI (flex)
$2 / $10GPT-6 Sol is the cost-efficient high-end model in OpenAI's GPT-6 series, positioned below the flagship GPT-6 Astra and above the fast GPT-6 Luna tier.
GPT-6 Sol Pro
1.05MCheapest: $2 on OpenAI (flex)
$2 / $10GPT-6 Sol Pro is the same underlying model as GPT-6 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
GPT-6 Astra
1.05MCheapest: $10 on OpenAI (flex)
$10 / $50GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work.
GPT-6 Astra Pro
1.05MCheapest: $10 on OpenAI (flex)
$10 / $50GPT-6 Astra Pro is the same underlying model as GPT-6 Astra, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
GPT-5.6 Luna
1.05MCheapest: $0.225 on OpenAI (flex)
$0.2 / $1.2GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series.
GPT-5.6 Luna Pro
1.05MCheapest: $0.225 on OpenAI (flex)
$0.2 / $1.2GPT-5.6 Luna Pro is the same underlying model as GPT-5.6 Luna, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
GPT-5.6 Sol
1.05MCheapest: $4 on OpenAI (flex)
$4 / $20100%GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series.
GPT-5.6 Sol Pro
1.05MCheapest: $4 on OpenAI (flex)
$4 / $20100%GPT-5.6 Sol Pro is the same underlying model as GPT-5.6 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
GPT-5.6 Terra
1.05MCheapest: $2.25 on OpenAI (flex)
$2 / $12GPT-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.
GPT-5.6 Terra Pro
1.05MCheapest: $2.25 on OpenAI (flex)
$2 / $12GPT-5.6 Terra Pro is the same underlying model as GPT-5.6 Terra, served with reasoning.mode set to pro for higher-quality responses on complex tasks.
GPT Chat Latest
400K
$5 / $30GPT Chat Latest points to OpenAI's stable API alias chat-latest that always resolves to the latest Instant chat model used in ChatGPT.
GPT-5.5
1.05MCheapest: $5.63 on OpenAI (flex)
$5 / $30GPT-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.
GPT-5.5 Pro
1.05MCheapest: $33.8 on OpenAI (flex)
$30 / $180GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads.
GPT-5.4 Image 2
272K
$8 / $15GPT-5.4 Image 2 combines OpenAI's GPT-5.4 model with state-of-the-art image generation capabilities from GPT Image 2.
GPT-5.4 Mini
400KCheapest: $0.844 on OpenAI (flex)
$0.75 / $4.5GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads.
GPT-5.4 Nano
400KCheapest: $0.231 on OpenAI (flex)
$0.2 / $1.25GPT-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.
GPT-5.4
1.05MCheapest: $2.81 on OpenAI (flex)
$2.5 / $15GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system.
GPT-5.4 Pro
1.05MCheapest: $33.8 on OpenAI (flex)
$30 / $180GPT-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.
GPT-5.3-Codex
400K
$1.75 / $14GPT-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.
GPT Audio
128K
$2.5 / $10The gpt-audio model is OpenAI's first generally available audio model.
GPT Audio Mini
128K
$0.6 / $2.4A cost-efficient version of GPT Audio. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency.
GPT-5.2-Codex
400K
$1.75 / $14GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows.
GPT-5.2
400KCheapest: $2.41 on OpenAI (flex)
$1.75 / $14GPT-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.
GPT-5.2 Chat
128K
$1.75 / $14GPT-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.
GPT-5.2 Pro
400K
$21 / $168GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro.
GPT-5.1-Codex-Max
400K
$1.25 / $10GPT-5.1-Codex-Max is OpenAI’s latest agentic coding model, designed for long-running, high-context software development tasks.
GPT-5.1
400KCheapest: $1.72 on OpenAI (flex)
$1.25 / $10GPT-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.
GPT-5.1-Codex
400K
$1.25 / $10GPT-5.1-Codex is a specialized version of GPT-5.1 optimized for software engineering and coding workflows.
GPT-5.1-Codex-Mini
400K
$0.25 / $2GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Text Embedding 3 Large
8K
$0.13 / Freetext-embedding-3-large is OpenAI's most capable embedding model for both english and non-english tasks.
Text Embedding 3 Small
8K
$0.02 / Freetext-embedding-3-small is OpenAI's improved, more performant version of the ada embedding model.
Text Embedding Ada 002
8K
$0.1 / Freetext-embedding-ada-002 is OpenAI's legacy text embedding model.
gpt-oss-safeguard-20b
131K
$0.075 / $0.3gpt-oss-safeguard-20b is a safety reasoning model from OpenAI built upon gpt-oss-20b.
GPT-5 Image Mini
400K
$2.5 / $2GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by GPT-5 Mini, with GPT Image 1 Mini for efficient image generation.
GPT-5 Image
400K
$10 / $10GPT-5 Image combines OpenAI's GPT-5 model with state-of-the-art image generation capabilities.
GPT-5 Pro
400K
$15 / $120GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience.
GPT-5
400K
$1.25 / $10GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience.
GPT-5 Mini
400KCheapest: $0.344 on OpenAI (flex)
$0.25 / $2GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks.
GPT-5 Nano
400KCheapest: $0.069 on OpenAI (flex)
$0.05 / $0.4GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments.
gpt-oss-120b
131K
$0.01 / $0.037gpt-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.
gpt-oss-20b
131K
$0.004 / $0.017gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
o3 Pro
200K
$20 / $80The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning.
o3
200K
$2 / $8o3 is a well-rounded and powerful model across domains.
GPT-4.1
1.05M
$2 / $8GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning.
GPT-4.1 Mini
1.05M
$0.4 / $1.6GPT-4.1 Mini is a mid-sized model delivering performance competitive with GPT-4o at substantially lower latency and cost.
GPT-4.1 Nano
1.05M
$0.1 / $0.4For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series.
GPT-4o (2024-11-20)
128K
$2.5 / $10The 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.
GPT-4o (2024-08-06)
128K
$2.5 / $10The 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.
GPT-4o-mini
128K
$0.15 / $0.6GPT-4o mini is OpenAI's newest model after GPT-4 Omni, supporting both text and image inputs with text outputs.
GPT-4o-mini (2024-07-18)
128K
$0.15 / $0.6GPT-4o mini is OpenAI's newest model after GPT-4 Omni, supporting both text and image inputs with text outputs.
GPT-4o
128K
$2.5 / $10GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs.
GPT-4o (2024-05-13)
128K
$5 / $15GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs.
GPT-3.5 Turbo (older v0613)
4K
$1 / $2GPT-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.
GPT-3.5 Turbo 16k
16K
$3 / $4This 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.
GPT-4
8K
$30 / $60OpenAI'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...

On other routes

ModelIn / out per 1M
gpt-oss-20b$0.004 / $0.017Same vs headlinefp4 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
Text Embedding 3 Small$0.02 / FreeSame vs headlinetext-embedding-3-small is OpenAI's improved, more performant version of the ada embedding model.
gpt-oss-120b$0.01 / $0.037Same vs headlinefp4 · 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.
gpt-oss-20b$0.018 / $0.09+397% vs headlinefp8 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
gpt-oss-20b$0.02 / $0.1+452% vs headlinefp4 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
gpt-oss-20b$0.03 / $0.13+659% vs headlinefp4 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
gpt-oss-20b$0.029 / $0.14+683% vs headlinebf16 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
gpt-oss-20b$0.03 / $0.14+693% vs headlinebf16 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
gpt-oss-120b$0.03 / $0.15+258% vs headlinefp4 · 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.
gpt-oss-120b$0.03 / $0.15+258% vs headlineint4 · 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.
gpt-oss-20b$0.03 / $0.15+728% vs headlinefp4 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
gpt-oss-120b$0.03 / $0.17+288% vs headlinefp4 · 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.
gpt-oss-120b$0.03 / $0.18+303% vs headlinebf16 · 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.
GPT-5 Nano$0.025 / $0.2-50% vs headlineflex · GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments.
gpt-oss-120b$0.03 / $0.187+313% vs headlinefp4 · 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.
gpt-oss-120b$0.037 / $0.17+319% vs headlinebf16 · 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.
gpt-oss-20b$0.04 / $0.18+934% vs headlinefp8 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
gpt-oss-20b$0.07 / $0.15+1141% vs headlinegpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
gpt-oss-20b$0.07 / $0.15+1141% vs headlineeu-west-1 · gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.
Text Embedding 3 Large$0.13 / FreeSame vs headlinetext-embedding-3-large is OpenAI's most capable embedding model for both english and non-english tasks.

About OpenAI

OpenAI is an American artificial intelligence (AI) public benefit corporation (PBC) headquartered in San Francisco, California. It develops proprietary generative AI models, particularly its generative pre-trained transformer (GPT) series of large language models.

Batch: Batch prices are 50% of Standard in the pricing tables (e.g. $10.00 vs $5.00 input); no explicit percentage wording

Caching: Cached input about 90% below input in the tables (e.g. $1.00 vs $10.00); no explicit wording

OpenAI on the price map

Size: context window, 8K to 2MEqual blended cost (3:1) 247 models, lower left is cheaper