GPT-6 Astra API
gpt-6-astraOpenAICommercial useNew API verifiedText & reasoning
OpenAI's GPT-6 Astra — frontier reasoning with a 1M-token context window, served through one API.
by OpenAI
Pricing: Input 275 credits / 1M tokens (≈ $2.75), Output 1,375 credits / 1M tokens (≈ $13.75). Cached Input 27.5 credits / 1M tokens (≈ $0.275), Cache Writes 343.75 credits / 1M tokens (≈ $3.4375) — applied automatically when the upstream reports cached tokens for your prompt; there is no field to request them.
Save up to 75%with the $1,250 top-up pack (+10% bonus) — 73% lower than direct rates even without itTop up24H Status Monitor
Operational24h agonow
MODEL
gpt-6-astra
Tools
Web Search
Web search feeds the results back as input tokens, so a searched turn typically costs many times a normal turn (measured: 6–87×). Billed per token as usual — nothing extra per search.
Reasoning effort
Stream Response
Start a conversation with GPT-6 Astra
Input 275 · Output 1375 cr / 1M · billed per token
You only pay for successful generations — if a task fails or returns no result, its credits are refunded automatically, never charged. And your credits never expire: top up once and spend at your own pace.1 credit = $0.01 USDTop up $1,250 for +10% bonus credits → up to ~9% more off every call.Top up credits
GPT-6 Astra API pricing4 prices
Model & ModalityCredits / GenOur Price (USD)Direct / Standard Price (USD)Base savingsSavings with top-up$1,250 top-up · +10% credits
gpt-6-astra, chat, Input
textOpenAI
Credits / Gen275per million tokens
Our Price (USD)$2.75
Direct / Standard Price (USD)$10
Base savings−72.5%
Savings with top-up · $1,250 · +10%−75% ↓
gpt-6-astra, chat, Output
textOpenAI
Credits / Gen1,375per million tokens
Our Price (USD)$13.75
Direct / Standard Price (USD)$50
Base savings−72.5%
Savings with top-up · $1,250 · +10%−75% ↓
gpt-6-astra, chat, Cache Writes
textOpenAI
Credits / Gen343.75per million tokens
Our Price (USD)$3.4375
Direct / Standard Price (USD)$12.5
Base savings−72.5%
Savings with top-up · $1,250 · +10%−75% ↓
gpt-6-astra, chat, Cached Input
textOpenAI
Credits / Gen27.5per million tokens
Our Price (USD)$0.275
Direct / Standard Price (USD)$1
Base savings−72.5%
Savings with top-up · $1,250 · +10%−75% ↓
Explore more LLM models
Moonshot AI
Kimi K3
Frontier coding, native vision, and 1M-token agents from Moonshot AI.
Claude Fable 5.1
Anthropic's Claude Fable 5.1 — for demanding reasoning and long-horizon agentic work, with stronger long-running agentic coding, multistep research, and document, spreadsheet and slide work across a 1M-token context.
Claude Opus 5.5
Anthropic's Claude Opus 5.5 — frontier reasoning for complex coding, research and agentic work, served through one API.
Claude Sonnet 5.5
Anthropic's Claude Sonnet 5.5 — the balanced Claude for everyday coding, writing and analysis, served through one API.
Claude Haiku 5.5
Anthropic's Claude Haiku 5.5 — the fastest, lowest-cost Claude for high-volume chat, coding and everyday tasks, served through one API.
Gemini 3.6 Flash
Google's newest speed-optimized multimodal model — fast text, vision, and reasoning.