Grok 4.7 vs GPT-6 Astra
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 counts against the Mid-tier models allowance on Pro, Max and Ultra; 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 that logs each request it forwards.
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 | Mid-tier models — Pro, Max, Ultra | Flagship models — Max, Ultra |
| Detail page | Grok 4.7 | 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
The API key, base URL and endpoints stay the same, but code written for Grok 4.7 may still need changes before it runs on GPT-6 Astra. Per OpenAI's GPT-6 guide (checked 2026-11-05), GPT-6 Astra takes tool calls only on the Responses API, does not accept the none reasoning effort (OpenAI suggests low) and takes no temperature, top_p or logprobs settings, so Grok 4.7 code that sends tools on /v1/chat/completions or sets those parameters has to change first. On a Pro, Max or Ultra plan the billing changes too: as of the 2026-11-05 plan response, Grok 4.7 counts against the Mid-tier models allowance on Pro, Max and Ultra, while GPT-6 Astra counts against the Flagship models allowance on Max and Ultra (on Pro it bills the wallet).
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 counts against the Mid-tier models allowance on Pro, Max and Ultra: Pro 1,200, Max 4,500 and Ultra 15,000 requests per 30-day cycle, shared by every model in that tier. 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. Requests to Grok 4.7 or GPT-6 Astra above the model's 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?
The API key, base URL and endpoints stay the same, but code written for Grok 4.7 may still need changes before it runs on GPT-6 Astra. Per OpenAI's GPT-6 guide (checked 2026-11-05), GPT-6 Astra takes tool calls only on the Responses API, does not accept the none reasoning effort (OpenAI suggests low) and takes no temperature, top_p or logprobs settings, so Grok 4.7 code that sends tools on /v1/chat/completions or sets those parameters has to change first. On a Pro, Max or Ultra plan the billing changes too: as of the 2026-11-05 plan response, Grok 4.7 counts against the Mid-tier models allowance on Pro, Max and Ultra, while GPT-6 Astra counts against the Flagship models allowance on Max and Ultra (on Pro it bills the wallet).
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 2026-11-14 (UTC) and refresh within the hour.