# GPT-6 Astra Ultrafast ![Organization](https://img.shields.io/badge/Org-OpenAI-412991) ![Pricing](https://img.shields.io/badge/Price-%2460%20%2F%20%24300%20per%201M-2da44e) ![License](https://img.shields.io/badge/License-Proprietary-d29922) ![Modality](https://img.shields.io/badge/Modality-Text%20%2B%20Vision-8957e5) ![Speed](https://img.shields.io/badge/Speed-~300%20tok%2Fs-blue) > **Quick answer:** GPT-6 Astra Ultrafast is OpenAI's low-latency inference tier of GPT-6 Astra, generating output at roughly 300 tokens/second — about 6-8x faster than Standard GPT-6 Astra — at 6x the Standard price ($60 input / $300 output per 1M tokens). It shares Astra's underlying intelligence profile and benchmark scores; the difference is purely inference speed and cost, not capability. ## At a Glance **What it is:** A speed-optimized serving tier of GPT-6 Astra, aimed at latency-sensitive agentic and interactive workloads where raw throughput matters more than per-token cost. **Why it matters:** Lets developers trade cost for roughly an order-of-magnitude latency reduction on the same underlying model, without retraining or switching to a smaller/weaker model. **Known limitations:** At 6x Standard pricing, it's materially more expensive per token; OpenAI has not published a separate benchmark suite for the Ultrafast tier since it uses the same weights as Standard GPT-6 Astra. ## What GPT-6 Astra Ultrafast Is GPT-6 Astra Ultrafast is a dedicated low-latency serving configuration of OpenAI's GPT-6 Astra model (released September 3, 2026). Rather than a distinct model checkpoint, it is an inference-infrastructure tier optimized for generation speed — reported at approximately 300 tokens/second, a 6-8x improvement over Astra's Standard serving tier — intended for latency-sensitive use cases such as real-time coding agents, interactive computer-use workflows, and customer-facing applications where response time is a hard constraint. Because it runs the same underlying weights as Standard GPT-6 Astra, Ultrafast inherits Astra's full benchmark profile (FrontierMath, GPQA Diamond, ARC-AGI-3, OSWorld 2.0, ExploitBench, and the rest of Astra's published results) — see the [GPT-6 Astra](/models/openai/gpt-6-astra) page for those scores. OpenAI prices the speed tier at 6x Standard: $60 per million input tokens and $300 per million output tokens, versus Astra Standard's $10/$50. Availability mirrors Astra's rollout: the OpenAI API (as a distinct Ultrafast model name), plus ChatGPT Work, Codex for Pro/500, and Enterprise tiers where OpenAI has enabled the faster serving path. ## Specifications | Field | Value | |---|---| | Organization | OpenAI | | Base model | GPT-6 Astra (same weights) | | License | Proprietary (API only) | | Modality | Multimodal (text + vision) | | Release date | 2026-09 (Ultrafast tier) | | Generation speed | ~300 tokens/second (6-8x Standard Astra) | | Availability | OpenAI API, ChatGPT Work, Codex (Pro/500), Enterprise | ## Pricing | | Input (per 1M tokens) | Output (per 1M tokens) | |---|---|---| | GPT-6 Astra Standard | $10.00 | $50.00 | | **GPT-6 Astra Ultrafast** | **$60.00** | **$300.00** | *Ultrafast pricing is 6x Standard GPT-6 Astra pricing, reflecting the dedicated low-latency serving infrastructure rather than a different model.* ## Public Benchmark Scores GPT-6 Astra Ultrafast runs the same underlying weights as Standard GPT-6 Astra, so its benchmark profile is identical — see [GPT-6 Astra's benchmark table](/models/openai/gpt-6-astra) for full results (FrontierMath 97.6%, ARC-AGI-3 99.9%, OSWorld 2.0 72.6%, ExploitBench 100.0%, and more). OpenAI has not published a separate benchmark suite specific to the Ultrafast serving tier. ## Frequently Asked Questions

What is GPT-6 Astra Ultrafast?

GPT-6 Astra Ultrafast is a low-latency inference tier of OpenAI's GPT-6 Astra model, generating output at roughly 300 tokens/second — about 6-8x faster than Standard Astra — at 6x the price.

How much does GPT-6 Astra Ultrafast cost?

$60 per million input tokens and $300 per million output tokens — 6x Standard GPT-6 Astra's $10/$50 pricing.

Does GPT-6 Astra Ultrafast score differently on benchmarks than Standard Astra?

No — Ultrafast runs the same underlying model weights as Standard GPT-6 Astra, so published benchmark scores are identical. The difference is purely inference speed and cost.

Is GPT-6 Astra Ultrafast available via API?

Yes, via the OpenAI API as a distinct model tier, as well as ChatGPT Work, Codex (Pro/500), and Enterprise where OpenAI has enabled the faster serving path.

GPT-6 Astra Ultrafast — Training jobs

Training jobs