GPT-6 Luna Decisions
- Family
- GPT-6
- Released
- 2026-10-06
- Context
- 1.05m
- Max output
- 0
- Knowledge cutoff
- 2026-05
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
Cheapest of 2 routes · OpenAI API
About
GPT-6 Luna Decisions is OpenAI's Decisions API surface (public beta) powered by GPT-6 Luna. Applications send shared text and/or image input plus typed questions (predicate / choice / score) to POST /v1/decisions and receive calibrated probabilities, choices with confidence, or rubric scores — about 10× faster than Luna via the Responses API per OpenAI docs. First-party model field is still gpt-6-luna (not a separate OpenAI model id). Billing is input tokens only at $0.10 per 1M tokens; no cache-read, cache-write, or output-token charges. Regional processing premiums and long-context input multipliers apply. Vercel AI Gateway exposes the same surface as openai/gpt-6-luna-decisions.
Provider price ladder
Compare all 2Compare API pricing across 2 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| OpenAI API | $0.100 | Free | Serverless |
| Vercel AI Gateway | $0.100 | Free | Serverless |
Available via routers & gateways(15)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.
AIRouter
RouterCommercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.
Helicone
GatewayObservability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.
Kong AI Gateway
GatewayMulti-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.
Capabilities
Benchmark peer barsfor RAG
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
API versions
gpt-6-luna-decisionsGPT-6 Luna Decisionsgpt-6-luna (Decisions API model field)openai/gpt-6-luna-decisionsCheapest of 2 routes · OpenAI API