# Grok 4.7 vs GPT-6 Astra

> Markdown mirror of https://router.one/models/compare/grok-4-7-vs-gpt-6-astra for AI assistants and crawlers. Router One is a unified, OpenAI-compatible LLM API gateway.

Grok 4.7 is the lower-priced of the two on Router One at base-tier rates (Grok 4.7: request input ≤ 200,000 tokens; GPT-6 Astra: request input ≤ 272,000 tokens) — about 63% less on a 1M-input + 1M-output mix. Grok 4.7 offers 500K of context vs 1.05M for GPT-6 Astra. Both answer on /v1/chat/completions and /v1/responses (Codex CLI). Grok 4.7 is in no plan and bills the wallet; GPT-6 Astra counts against the Flagship models allowance on Max and Ultra.

Grok 4.7 and GPT-6 Astra compared on current per-token rates, context window, and capabilities — both callable through one OpenAI-compatible endpoint with per-request cost traces.

## Grok 4.7 vs GPT-6 Astra: rates, context window, and capabilities

| Spec | Grok 4.7 | GPT-6 Astra |
| --- | --- | --- |
| Input / 1M tokens | $1.10 | $2.00 |
| Output / 1M tokens | $3.30 | $10.00 |
| Cached input / 1M tokens | $0.275 | $0.20 |
| Context window | 500K | 1.05M |
| Capabilities | Chat, Streaming, Tool calling, Vision | Chat, Streaming, Tool calling, Vision |
| Subscription plans | Not in any plan — wallet | Flagship models — Max, Ultra |
| Detail page | [Grok 4.7](https://router.one/models/grok-4-7) | [GPT-6 Astra](https://router.one/models/gpt-6-astra) |

Grok 4.7: request input ≤ 200,000 tokens: Input $1.10 / 1M tokens, Output $3.30 / 1M tokens, Cache write $1.10 / 1M tokens, Cached input $0.275 / 1M tokens; request input > 200,000 tokens: Input $2.20 / 1M tokens, Output $6.60 / 1M tokens, Cache write $2.20 / 1M tokens, Cached input $0.55 / 1M tokens. The total input tokens in each request select the tier; its rates apply to the whole request, not only tokens above the threshold.

GPT-6 Astra: request input ≤ 272,000 tokens: Input $2.00 / 1M tokens, Output $10.00 / 1M tokens, Cache write $2.50 / 1M tokens, Cached input $0.20 / 1M tokens; request input > 272,000 tokens: Input $4.00 / 1M tokens, Output $15.00 / 1M tokens, Cache write $5.00 / 1M tokens, Cached input $0.40 / 1M tokens. The total input tokens in each request select the tier; its rates apply to the whole request, not only tokens above the threshold.

## What does 1M tokens cost on Grok 4.7 vs GPT-6 Astra?

Base-tier rates: For a workload of 1M input plus 1M output tokens at current rates: Grok 4.7 comes to $4.40, GPT-6 Astra comes to $12.00 — Grok 4.7 is about 63% cheaper on this mix. Real workloads skew heavily toward input tokens, so weigh the input rate by your own ratio; the cached-input row above is the posted catalog rate for that model.

## Switch between Grok 4.7 and GPT-6 Astra without changing code

Both models are behind the same OpenAI-compatible endpoint, so an A/B test is a one-string change — same key, same code, and every request traced with tokens, cost, and latency in the dashboard:

`compare.sh`

```bash
curl https://api.router.one/v1/chat/completions \
  -H "Authorization: Bearer sk-your-router-one-key" \
  -H "Content-Type: application/json" \
  -d '{"model": "grok-4.7", "messages": [{"role": "user", "content": "Hello"}]}'

# Same request, other model — change one string:
#   "model": "openai/gpt-6-astra"
```

## FAQ

### Is Grok 4.7 cheaper than GPT-6 Astra?

Compared at base-tier rates (Grok 4.7: request input ≤ 200,000 tokens; GPT-6 Astra: request input ≤ 272,000 tokens). Input: Grok 4.7 $1.10 vs GPT-6 Astra $2.00 / 1M tokens; Grok 4.7 has the lower rate. Output: Grok 4.7 $3.30 vs GPT-6 Astra $10.00 / 1M tokens; Grok 4.7 has the lower rate. Total cost depends on the workload's input, output and cache usage. Grok 4.7: request input ≤ 200,000 tokens: Input $1.10 / 1M tokens, Output $3.30 / 1M tokens, Cache write $1.10 / 1M tokens, Cached input $0.275 / 1M tokens; request input > 200,000 tokens: Input $2.20 / 1M tokens, Output $6.60 / 1M tokens, Cache write $2.20 / 1M tokens, Cached input $0.55 / 1M tokens. The total input tokens in each request select the tier; its rates apply to the whole request, not only tokens above the threshold. GPT-6 Astra: request input ≤ 272,000 tokens: Input $2.00 / 1M tokens, Output $10.00 / 1M tokens, Cache write $2.50 / 1M tokens, Cached input $0.20 / 1M tokens; request input > 272,000 tokens: Input $4.00 / 1M tokens, Output $15.00 / 1M tokens, Cache write $5.00 / 1M tokens, Cached input $0.40 / 1M tokens. The total input tokens in each request select the tier; its rates apply to the whole request, not only tokens above the threshold. Rates change; the /models page is the live source of truth.

### Is Grok 4.7 or GPT-6 Astra included in a Router One subscription?

Grok 4.7 is in no Router One plan, so every call bills the wallet per token. GPT-6 Astra counts against the Flagship models allowance on Max and Ultra: Max 150 and Ultra 450 requests per 30-day cycle, shared by every model in that tier. GPT-6 Astra requests above its long-context threshold count as more than one quota request. Requests beyond a plan's allowance bill the wallet per token.

### Can I switch between Grok 4.7 and GPT-6 Astra without changing code?

Yes. Both are served through the same OpenAI-compatible endpoint, so switching is changing the model string in the request — the key, base URL, and request shape stay identical.

### Where do these numbers come from?

Specs and prices on this page render from the live Router One catalog — the same data as the /models page — and refresh with it. Pricing methodology is documented on /pricing-methodology. Rates on this page were read from the live catalog on 2026-09-30 (UTC) and refresh within the hour.

## More comparisons

- [Claude Fable 5 vs GPT-6 Astra](https://router.one/models/compare/claude-fable-5-vs-gpt-6-astra)
- [Grok 4.7 vs Grok 4.6](https://router.one/models/compare/grok-4-7-vs-grok-4-6)
- [Grok 4.7 vs GPT-5.5](https://router.one/models/compare/grok-4-7-vs-gpt-5-5)
- [Grok 4.7 vs Gemini 3.8 Flash](https://router.one/models/compare/grok-4-7-vs-gemini-3-8-flash)

## See also

- Canonical page: https://router.one/models/compare/grok-4-7-vs-gpt-6-astra
- All model comparisons: https://router.one/models/compare
- All models & prices: https://router.one/models (markdown: https://router.one/models.md)
- Pricing: https://router.one/pricing
- Grok API in China: https://router.one/grok-api-china
- GPT API access: https://router.one/cheap-gpt-api
- Cost calculator: https://router.one/llm-cost-calculator
- Pricing methodology: https://router.one/pricing-methodology