OpenAIVerified Active: October 15, 2026
GPT-6 LunaAPI Pricing & Specifications
Ultra-fast, lowest-cost reasoning model ($0.10/M input, $0.50/M output) for high-frequency agentic loops and real-time classification.
📊 Core Specifications & Pricing Rates
Standard Input
$0.10 / 1M tokens
Standard Output
$0.50 / 1M tokens
Cached Input
$0.0100 / 1M tokens
Cache Write
$0.13 / 1M tokens
Context Window
500K (500,000 tokens)
Max Output Tokens
64,000 tokens
Supported Capabilities:✓ Vision✓ Function Calling / Tools✓ JSON ModeStandard Inference
📦 Asynchronous Batch API Supported: Official provider documentation offers a 50% discount on non-streaming 24h batch requests.
Live Workload Cost Estimator: GPT-6 Luna
Adjust token volumes to simulate your exact monthly API bill.
Estimated 60% repeated context
Estimated Total Monthly Cost
Compare All Models in Calculator→$6.73/ month
$0.00027 per API request(Saves $2.03/mo with caching)
💡 Estimated Monthly Workload Scenarios
High-Throughput Content Triage
$37.50/mo250,000 categorization requests (1,000 input, 100 output)
250,000 requests • 1000 in / 100 out
⚖️ Head-to-Head Competitor Comparisons
GPT-6 Luna vs. Claude Haiku 5.5
Direct parity at $0.10/$0.50 per 1M tokens; GPT-6 Luna offers a larger 500K context window.
Identical baseline token pricingView Claude Haiku 5.5 →
📜 Historical Price Changes & Updates
2026-10-15
GPT-6 Luna launched with baseline rates of $0.10 input / $0.50 output per 1M tokens.
🔗 Verified Primary Sources
All pricing, token limits, and capabilities are cross-checked against official provider documentation and live API endpoints.