openai OpenAI: GPT-5.6 Luna (batch) openai/gpt-5.6-luna:batch GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. Context window: 1,050,000 tokens Input: file, image, text Output: text Pricing: $0.1/M input tokens, $0.6/M output tokens RuntimeWire coverage Perplexity takes all three top spots in Artificial Analysis' search API testWhen you should choose Conductor Cloud vs just using ReplitHead to head: OpenAI: GPT-5.6 Luna vs Grok 4.20 0309 Non ReasoningHead to head: Anthropic: Claude Fable 5 vs OpenAI: GPT-5.6 LunaReplit launches paid Free Mode with OpenAI's cheapest GPT-5.6 modelOpenAI lets GPT-5.6 Sol delegate grunt work to cheaper Luna agentsGrok 4.6 tops Newsroom Reliability v0.2 benchmark at 0.78Grok 4.6 tops Newsroom Reliability v0.2 benchmark at 0.79Open-weight models surge past closed rivals in Vercel token trafficOpenAI, Anthropic and Google blocked a cross-model reasoning attackOpenAI makes GPT-5.6 Luna the default for free ChatGPT usersPokee AI launches 28B agent model, claims 10 million tokens on one RTX 4090 View on OpenRouter. Model data sourced from OpenRouter.