GPT-6 Astra vs Grok 4.7
GPT-6 Astra scores higher on the Models at Work leaderboard (86 vs 58 out of 100). Grok 4.7 is about 5.3× cheaper per blended million tokens ($3.74 vs $20, one figure an Artificial Analysis estimate). On Artificial Analysis' independent Intelligence Index, GPT-6 Astra leads 53 to 46.
| GPT-6 Astra · OpenAI | Grok 4.7 · xAI | |
|---|---|---|
| Leaderboard rank | #2 | #12 |
| Score (0–100) | 86 | 58 |
| Tier | Frontier | Workhorse |
| Price per 1M tokens | $10 in · $50 out | $3.74 blended (estimate) |
| Context window | 1M | 500K |
| Open weights | No | No |
| Artificial Analysis Intelligence Index | 53 | 46 |
| Humanity's Last Exam, Diamond (Scale) | 60.6 | — |
| Humanity's Sixth Sense (Scale) | 53.6 | — |
| FrontierMath Erdős (Epoch) | 3% (2 of 68) | — |
| Best for | Hard reasoning, Research-grade analysis, When cost is not the constraint | X-integrated products |
Choose GPT-6 Astra if…
- you need hard reasoning
- you need research-grade analysis
- you need when cost is not the constraint
The reasoning heavyweight: leads the hardest exams and the cipher-cracking party tricks, and charges like it.
Caveats: Long-context pricing doubles above 272K input tokens. Speed is the lowest of the frontier set in Artificial Analysis' measurement.
Choose Grok 4.7 if…
- you need x-integrated products
Mid-table on the index at a frontier price, with a smaller context window than everyone above it.
Caveats: 500K context is the smallest in the table. Listed by Artificial Analysis under the creator's current corporate name.
What practitioners say
GPT-6 Astra: The launch drew the largest model thread of 2026 on Hacker News, and the stories that followed were about capability rather than cost: an Enigma message unsolved since 2005, a WWI cipher, a driving benchmark.
Questions people ask
Which is better, GPT-6 Astra or Grok 4.7?
GPT-6 Astra scores higher on the Models at Work leaderboard (86 vs 58 out of 100). Grok 4.7 is about 5.3× cheaper per blended million tokens ($3.74 vs $20, one figure an Artificial Analysis estimate). On Artificial Analysis' independent Intelligence Index, GPT-6 Astra leads 53 to 46.
When should I choose GPT-6 Astra over Grok 4.7?
Choose GPT-6 Astra for hard reasoning, research-grade analysis, when cost is not the constraint. The reasoning heavyweight: leads the hardest exams and the cipher-cracking party tricks, and charges like it.
When should I choose Grok 4.7 over GPT-6 Astra?
Choose Grok 4.7 for x-integrated products. Mid-table on the index at a frontier price, with a smaller context window than everyone above it.
Which is cheaper, GPT-6 Astra or Grok 4.7?
GPT-6 Astra costs $10 per million input tokens and $50 per million output tokens on OpenAI's list price (OpenAI API pricing, read Oct 10, 2026). xAI does not publish a simple list price for Grok 4.7; Artificial Analysis estimates a blended $3.74 per million tokens (three input to one output).
Scores come from the Models at Work leaderboard: Score is 0 to 100: 50% independent evals normalised within this table, 20% price-performance, 15% practitioner sentiment from Signals and community threads, 15% operational fit (context, speed, availability, open weights). Models within three points are a tie in practice. Vendor-published figures are labelled as such and never counted as independent. Prices are vendor list prices where published; blended figures assume three input tokens per output token.