CP

OpenAI

GPT-6 Astra

GPT-6 Astra scores 1774 on WebDev Arena — rank 2 of 29 models we track with a published score and costs $20 per 1M blended tokens on the API — the best-scoring model at that price is Claude Opus 5.5 (1807).

API price

$20

per 1M blended tokens

WebDev Arena

1774

rank 2 of 29 tracked models

Cheapest plan with it

ChatGPT Plus

$20/month

Benchmark scores

BenchmarkScoreRankSourcePublished
WebDev Arena1774Max#2 of 29LMArena2026-10-19
FrontierCode53.3%max#2 of 25Epoch AI Benchmarking Hub2026-09-03
FrontierSWE65.5%max#1 of 12Epoch AI Benchmarking Hub2026-09-03
DeepSWE74.1%xhigh#1 of 12Epoch AI Benchmarking Hub2026-09-03

The rank is among the 29 models we track with a published score for that benchmark — not the full leaderboard of the source, which lists many models we do not track. Where a source publishes several reasoning-effort settings, we show the model's best listed result.

API price

Input
$10 per 1M tokens
Output
$50 per 1M tokens
Blended (3 input : 1 output)
$20 per 1M tokens
Above 272K input tokens
$20 in / $75 out

Short context ≤272K input tokens; long-context rates apply above that.

Checked 2026-10-17 · source

Where it sits

WebDev Arena score against API price, with every model we can price and score on the same benchmark. Up and to the left is better.

GPT-6 Astra on the WebDev Arena vs price chart$0.14$2.0$29180016001400GPT-6 AstraAPI price per 1M blended tokensWebDev Arena
Value frontier
No — a cheaper model scores higher
Best model at $20 or less
Claude Opus 5.51807 · $8
Cheaper and scoring higher
Claude Opus 5.51807 · $8
Cheaper models on the frontier
Qwen3.8-Max1674 · $3, Claude Sonnet 5.51768 · $4, Claude Opus 5.51807 · $8

Plans that include GPT-6 Astra

Other OpenAI models

Common questions

How much does GPT-6 Astra cost?
$10 per 1M input tokens and $50 per 1M output tokens, which is $20 on a 3:1 input:output mix. The price was checked on 2026-10-17.
Which subscription plans include GPT-6 Astra?
4 of the plans we track list it by name: ChatGPT Plus ($20/mo), ChatGPT Business ($25/mo), Copilot Pro+ ($39/mo), ChatGPT Pro ($100/mo).
How does GPT-6 Astra rank on WebDev Arena?
It ranks 2 of 29 models we track with a published WebDev Arena score, at 1774. The rank is among the models on this site, not the full LMArena leaderboard.
Is GPT-6 Astra the best value for coding?
No. 1 tracked model score higher on WebDev Arena and cost less. The best-scoring model at $20 or less is Claude Opus 5.5.
What is the cheapest way to use GPT-6 Astra?
ChatGPT Plus is the cheapest subscription we track that lists it, at $20/month. Per-token API pricing is listed separately above.