Model vs model
GPT-6 Astra vs Grok 4.7
GPT-6 Astra and Grok 4.7 are both in llmwise. What each gets on every plan, what it reads, how it's served and what happens when its provider fails, from the catalog and the code that runs them.
Model prices and specs checked against OpenRouter's GPT-6 Astra page, OpenRouter's Grok 4.7 page.
Short answer
Grok 4.7 gets eight times as many messages: up to 250 messages a month on Pro, against up to 31 messages a month for GPT-6 Astra. Otherwise, only Grok 4.7 is in the free trial.
GPT-6 Astra and Grok 4.7 on every plan
Whether the one-time free trial reaches each model, then each paid plan's messages on it.
| Plan | Price | GPT-6 Astra | Grok 4.7 |
|---|---|---|---|
| Free | $0 | Not in the trial | In the one-time trial of 5 messages |
| Pro | $20 a month | Up to 31 a month | Up to 250 a month |
| Max | $50 a month | Up to 100 a month | Up to 800 a month |
| Ultra | $100 a month | Up to 225 a month | Up to 1,800 a month |
| Studio | $200 a month | Up to 500 a month | Up to 4,000 a month |
Prices don't include tax, which is added where it applies and shown before you pay. A paid plan's month is one allowance shared by every model, so each monthly count is the most you get if all of it goes to that model. It renews each billing period; everyday models refill daily at 00:00 UTC. Long chats count more per reply. How pricing works.
Every limit is published. Paid plans also have a monthly fair-use limit on AI cost: Pro $7.50, Max $20, Ultra $42, Studio $85. Using every message on your plan at typical sizes stays under it; very large messages and heavy research use it faster. Every limit, explained.
What differs
Messages on Pro
Grok 4.7 gets eight times as many messages: up to 250 messages a month on Pro, against up to 31 messages a month for GPT-6 Astra.
Context window
GPT-6 Astra takes up to 1.05M tokens; Grok 4.7 up to 500K tokens. A chat in llmwise holds up to 200k tokens, which fits in either, so the difference shows only through each maker's own API.
Images and PDFs
Both read images. Both take a PDF as the whole file, pages and all.
On Free
Grok 4.7 is in the free trial; GPT-6 Astra needs a paid plan.
Where messages go
GPT-6 Astra: Sent to OpenAI directly. Grok 4.7: Served through OpenRouter by xAI alone, on an endpoint that doesn't store or train on prompts.
Fact by fact
| Fact | GPT-6 Astra | Grok 4.7 |
|---|---|---|
| Context window | 1.05M tokens | 500K tokens |
| Reads images | Yes | Yes |
| PDFs | Whole file | Whole file |
| Reasoning | Yes | Yes |
| API price (September 2026) | $10.00 in / $50.00 out per million tokens | $1.60 in / $4.80 out per million tokens |
| A typical message at API prices (4,000 tokens in, 700 out) | $0.0750 | $0.0098 |
| A $10 top-up adds | 25 messages | 200 messages |
| Where a message goes | Sent to OpenAI directly. | Served through OpenRouter by xAI alone, on an endpoint that doesn't store or train on prompts. |
| If the provider fails | If OpenAI fails before the reply starts (an overload, a server error, a dropped connection), llmwise sends the same request to GPT-6 Astra through OpenRouter instead. | xAI is its only host, so there's no other host to move to: if xAI fails, send the message again or pick another model. |
| Anthropic's safety fallback | Doesn't apply | Doesn't apply |
GPT-6 Astra or Grok 4.7?
From the facts above, not from benchmarks: the rest is how their answers suit your work, which one chat can show you.
Pick Grok 4.7: more messages for the money, up to 250 messages a month on Pro; you can try it in the free trial.
Try GPT-6 Astra and Grok 4.7 on your own question
Start a chat on GPT-6 Astra and ask a real question from your work, with any files it needs.
Switch the model picker to Grok 4.7 and ask for its answer to the same question. It sees the whole chat, including GPT-6 Astra's answer.
Compare the two on what matters to you: accuracy, tone, length, how much you'd have to fix. If it's close, ask each a follow-up.
The badge by each model in the picker shows what a message uses before you send it.
Each model's page, the families, and other pairs
GPT-6 Astra vs Grok 4.7 is one pair of models. The page below covers the whole families.
- GPT-6 Astra: price, limits and messages on every plan
- Grok 4.7: price, limits and messages on every plan
- Grok vs GPT
- Claude Fable 5.1 vs GPT-6 Astra
- Claude Opus 5.5 vs GPT-6 Astra
- GPT-6 Astra vs GPT-6 Sol
- Claude Fable 5.1 vs Grok 4.7
- Every model-vs-model page
GPT-6 Astra is a GPT model; Grok 4.7 is a Grok model.
Questions
Is GPT-6 Astra or Grok 4.7 cheaper in llmwise?
Grok 4.7 gets eight times as many messages: up to 250 messages a month on Pro, against up to 31 messages a month for GPT-6 Astra. Every paid plan's monthly allowance is shared by all models, so each count is the most you get if it all goes to that model.
Can I try GPT-6 Astra and Grok 4.7 for free?
Grok 4.7 is, in the free trial of 5 messages; GPT-6 Astra needs a paid plan.
Which has the bigger context window, GPT-6 Astra or Grok 4.7?
GPT-6 Astra: 1.05M tokens, against 500K tokens. A chat in llmwise holds up to 200k tokens, which fits in either, so the difference shows only through each maker's own API.
Can I use GPT-6 Astra and Grok 4.7 in the same chat?
Yes. Pick GPT-6 Astra for one message and Grok 4.7 for the next; the second sees the whole chat, including the first one's answer.
Claude, GPT, Gemini, DeepSeek, Grok, Kimi, and GLM, in one chat.
See what a message costs before you send it. Free is 5 messages to try; sign in with an email link, no password or card.