OpenAI
GlobalOpenAI API and ChatGPT subscriptions. The GPT-5.6 family spans Sol, Terra and Luna tiers, each with a 128K short-context option and a 1M long-context option, plus the GPT-5.5 and GPT-5.4 generations. Cache hits cut input cost by 90% and the Batch API halves all rates.
Verified 2026-09-26
OpenAI provides cutting-edge AI models through a pay-as-you-go API pricing model. Their GPT-5 series delivers industry-leading performance with up to 270K context window, making it ideal for complex reasoning, code generation, and multimodal tasks.
OpenAI remains the benchmark for AI model quality with its GPT-5.4 and GPT-5.5 models. The pay-as-you-go pricing model means you only pay for the tokens you consume, with no upfront commitment. This makes OpenAI particularly attractive for businesses with variable workloads or those just starting to experiment with AI integration.
The 270K context window is among the largest available, enabling processing of extensive documents, codebases, and conversation histories in a single session. OpenAI API supports a wide range of use cases including chat, code generation, image analysis, and function calling.
For developers, OpenAI offers robust API documentation, SDK support in multiple programming languages, and enterprise-grade reliability. The platform supports fine-tuning for custom models and provides detailed usage analytics. While the per-token cost is higher than some competitors like DeepSeek, the superior model quality and extensive ecosystem make OpenAI a top choice for production applications.
OpenAI Plans
GPT-5.6 Sol (Short Context)
- βOutput $30.00 per 1M tokens
- βCache hit $0.5 per 1M tokens
- β128K context; use Long Context tier above 128K
- βBatch API at 50% discount
- βStreaming, function calling, structured output
- βMost capable OpenAI tier
GPT-5.6 Sol (Long Context)
- βOutput $45.00 per 1M tokens
- βCache hit $1 per 1M tokens
- β1M context window
- βInput rate doubles versus Short Context
- βBatch API at 50% discount
- βFor whole-codebase and long-document workloads
GPT-5.6 Terra (Short Context)
- βOutput $15.00 per 1M tokens
- βCache hit $0.25 per 1M tokens
- β128K context; use Long Context tier above 128K
- βBatch API at 50% discount
- βDefault production tier for most workloads
GPT-5.6 Terra (Long Context)
- βOutput $22.50 per 1M tokens
- βCache hit $0.5 per 1M tokens
- β1M context window
- βBatch API at 50% discount
- βBest balance of context and cost
GPT-5.6 Luna (Short Context)
- βOutput $6.00 per 1M tokens
- βCache hit $0.1 per 1M tokens
- β128K context; use Long Context tier above 128K
- βBatch API at 50% discount
- βHigh-volume tier for chat and simple coding
GPT-5.6 Luna (Long Context)
- βOutput $9.00 per 1M tokens
- βCache hit $0.2 per 1M tokens
- β1M context window
- βBatch API at 50% discount
- βCheapest way to get 1M context on OpenAI
GPT-5.5
- βOutput $30.00 per 1M tokens
- βCache hit $0.5 per 1M tokens
- βPrevious-generation flagship
- βBatch API at 50% discount
GPT-5.4
- βOutput $15.00 per 1M tokens
- βCache hit $0.25 per 1M tokens
- βWidely deployed production model
- βBatch API at 50% discount
GPT-5.4 Mini
- βOutput $4.50 per 1M tokens
- βCache hit $0.075 per 1M tokens
- βBest value tier in the GPT-5.4 family
- βBatch API at 50% discount
ChatGPT Free
- βLimited access to the flagship model
- βLimited advanced reasoning and file uploads
- βStandard voice mode
- βNo credit card required
ChatGPT Plus
- βHigher message limits on flagship models
- βAdvanced reasoning models
- βDeeper research, file analysis and image generation
- βEarly access to new features
ChatGPT Pro
- βUnlimited access to all models including Pro tiers
- βHighest limits on advanced reasoning
- βPriority access to new features
- βExtended agent mode and research tools