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GPT-6 Astra (Official API)

openai·openai/gpt-6-astra-official·GA·Closed·gpt-astra series·NEW
GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.

Specs & pricing

Input / output per 1M tokens
Reference price·Infer by Flow7
$12.50 / $62.50
Blended $25.00 · Cache read $1.25
Lowest paid·Infer by Flow7Gateway
$12.50 / $62.50
Blended $25.00
Context
271,999
Output limit
128,000
Knowledge cutoff
2026-04-30
Released / updated
2026-09-04 / 2026-09-04
Capabilities
✓ Reasoning✓ Tool use✓ Structured outputTemperature✓ Attachments
Modalities
TextImagePDF

Available at 1 providers1 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
Infer by Flow7
infer/gpt-6-astra:official
Gateway$12.50$62.50$1.25$15.63271,999128,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = loweffort = mediumeffort = higheffort = xhigheffort = max

Your usage cost

1Infer by Flow7$4,275.00
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input list $12.50Output list $62.50Min blended $25.00

Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-20). Each future sync adds a point, and once accumulated a line is drawn here.

Related models

GPT Astra Latestsame series$10.00 / $50.00GPT-6 Astrasame series$10.00 / $50.00GPT-6 Astra (Fast)same series$20.00 / $100GLM-5.2cheaper alternative$1.40 / $4.40Kimi K3cheaper alternative$3.00 / $15.00GLM-5.3cheaper alternative$1.40 / $4.40GLM-5.3-Flashcheaper alternative$0.15 / $0.50
Data partly from models.dev (MIT) · Infer by Flow7 official docs ↗