GPT-6.1 Sol vs Grok 4.7: API cost comparison
For a typical chatbot (1,500 input + 400 output tokens, 100,000 requests a month), Grok 4.7 is 21% cheaper: $555 vs $700 for GPT-6.1 Sol. Paste your own prompt below to compare the exact cost of your workload.
0 characters0 words0 tokens (GPT o200k)
| Model | Per month |
|---|---|
| GPT-6.1 Sol | |
| Grok 4.7 |
≈ = estimated token count: only OpenAI publishes its tokenizer. Claude counts use Anthropic’s published ratios; use the count_tokens API for an exact number.
Price per million tokens
USD, standard tier. Prices checked on October 28, 2026.
| GPT-6.1 Sol | Grok 4.7 | |
|---|---|---|
| Input | $2 | $2 |
| Output | $10 | $6 |
| Cached input | $0.1 | $0.5 |
| Cache write (5 min) | Not charged separately | Not charged separately |
| Long prompts | Above 272K tokens: $4 / $15 | Above 200K tokens: $4 / $12 |
| Batch API | 50% off | 20% off |
| Provider | OpenAI (GPT) | xAI (Grok) |
Monthly cost for common workloads
| Workload | GPT-6.1 Sol | Grok 4.7 |
|---|---|---|
| Chatbot 1,500 input + 400 output tokens, 100,000 requests a month | $700 | $555 |
| Document Q&A (RAG) 8,000 input + 500 output tokens, half the input cached, 20,000 requests a month | $268 | $270 |
| Long-document summary 150,000 input + 2,000 output tokens, 1,000 requests a month | $320 | $327 |
| Bulk classification (Batch API) 500 input + 20 output tokens, 1 million requests a month, Batch API where available | $600 | $936 |
Token counts are converted per model: the same text becomes a different number of tokens on each provider (see below). The cheaper option in each row is highlighted.
Frequently asked questions
Is GPT-6.1 Sol cheaper than Grok 4.7?
Per million tokens, GPT-6.1 Sol costs $2 / $10 (input / output) and Grok 4.7 costs $2 / $6. For a typical chatbot workload (1,500 input + 400 output tokens, 100,000 requests a month), Grok 4.7 is 21% cheaper: $555 vs $700 for GPT-6.1 Sol. Token counts differ between providers, so compare the cost of the same prompt rather than the price per token.
How much do GPT-6.1 Sol and Grok 4.7 cost per million tokens?
GPT-6.1 Sol: $2 / $10 for input / output, $0.1 for cached input. Grok 4.7: $2 / $6, $0.5 for cached input. Prices in US dollars, standard tier, checked on October 28, 2026.
Do GPT-6.1 Sol and Grok 4.7 count tokens the same way?
GPT-6.1 Sol's tokenizer is not published; we use the o200k count, which is close for newer OpenAI models. Grok 4.7's tokenizer is not published. We estimate about 1.05× the GPT o200k count for the same text.
Do GPT-6.1 Sol and Grok 4.7 have a Batch API discount?
Both do: GPT-6.1 Sol gets 50% off and Grok 4.7 20% off for requests sent through the Batch API, which may take up to 24 hours.
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