High-volume, cost-sensitive work
Choose Grok 4.7
Grok 4.7 costs 25% less on a typical mix of three input tokens for every output token ($3.00 against $4.00 per million tokens).
GPT-6.1 Sol vs Grok 4.7: price, context and capabilities
Choose GPT-6.1 Sol for reused prompts and documents (RAG, agents), very long inputs, the hardest reasoning tasks and reasoning over long documents. Choose Grok 4.7 for high-volume, cost-sensitive work, writing and code generation and the most recent knowledge.
In short
- Grok 4.7 is 25% cheaper than GPT-6.1 Sol at the headline price ($3.00 / 1M tokens vs $4.00 / 1M tokens).
- GPT-6.1 Sol reads more per request: 1.05M tokens against 500k.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Writing and code generation
Choose Grok 4.7
Grok 4.7 charges $6.00 per million output tokens, against $10.00 for GPT-6.1 Sol. Output dominates the bill when answers are long.
Reused prompts and documents (RAG, agents)
Choose GPT-6.1 Sol
GPT-6.1 Sol charges $0.10 per million cached input tokens, against $0.50 for Grok 4.7.
Very long inputs
Choose GPT-6.1 Sol
GPT-6.1 Sol reads up to 1.05M tokens per request, against 500k for Grok 4.7.
Hardest reasoning tasks
Choose GPT-6.1 Sol
GPT-6.1 Sol scores 51.8 on the Artificial Analysis Intelligence Index, against 46.4 for Grok 4.7.
Reasoning over long documents
Choose GPT-6.1 Sol
GPT-6.1 Sol scores 83% on Long-context reasoning (AA-LCR), against 76.7% for Grok 4.7.
Most recent knowledge
Choose Grok 4.7
Grok 4.7 was trained on data up to May 2026, against April 2026 for GPT-6.1 Sol.
Monthly cost at three volumes
| Volume | GPT-6.1 Sol | Grok 4.7 | Difference |
|---|---|---|---|
| Prototype: 1M input, 250K output tokens | $4.50 | $3.50 | Grok 4.7, $1.00 less |
| Production: 20M input, 5M output tokens | $90.00 | $70.00 | Grok 4.7, $20.00 less |
| Scale: 500M input, 100M output tokens | $2,000 | $1,600 | Grok 4.7, $400.00 less |
Standard rates, without caching or batch discounts. Volumes are per month.
Specifications side by side
| GPT-6.1 Sol | Grok 4.7 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Category | Language models | Language models |
| Status | Generally available | Generally available |
| Headline price | $4.00 / 1M tokens | $3.00 / 1M tokens |
| Input | $2.00 / 1M tokens | $2.00 / 1M tokens |
| Output | $10.00 / 1M tokens | $6.00 / 1M tokens |
| Cached input | $0.10 / 1M tokens | $0.50 / 1M tokens |
| Context window | 1.05M | 500k |
| Max output | 128k | No data |
| Released | Sep 29, 2026 | September 2026 |
| Knowledge cutoff | April 2026 | May 2026 |
| Licence | Proprietary | Proprietary |
| Capabilities | Vision, Reasoning, Tool calling, Structured output, Prompt caching, Batch API | Vision, Reasoning, Tool calling, Structured output, Prompt caching, Batch API |
| API model id | gpt-6.1-sol | grok-4.7 |
Benchmarks side by side
Leader in bold.
| Benchmark | GPT-6.1 Sol | Grok 4.7 |
|---|---|---|
| Intelligence Index | 51.8 | 46.4 |
| SciCode | 54.2% | 57.4% |
| Humanity's Last Exam | 52.9% | 43.1% |
| Long-context reasoning (AA-LCR) | 83% | 76.7% |
| MMMU-Pro (visual reasoning) | 86% | No data |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose GPT-6.1 Sol or Grok 4.7?
Choose GPT-6.1 Sol for reused prompts and documents (RAG, agents), very long inputs, the hardest reasoning tasks and reasoning over long documents. Choose Grok 4.7 for high-volume, cost-sensitive work, writing and code generation and the most recent knowledge.
Which is cheaper, GPT-6.1 Sol or Grok 4.7?
Grok 4.7 is 25% cheaper than GPT-6.1 Sol at the headline price ($3.00 / 1M tokens vs $4.00 / 1M tokens).
Which has the larger context window, GPT-6.1 Sol or Grok 4.7?
GPT-6.1 Sol reads more per request: 1.05M tokens against 500k.
What is the difference between GPT-6.1 Sol and Grok 4.7?
GPT-6.1 Sol is made by OpenAI and Grok 4.7 by xAI. Grok 4.7 is 25% cheaper than GPT-6.1 Sol at the headline price ($3.00 / 1M tokens vs $4.00 / 1M tokens). GPT-6.1 Sol reads more per request: 1.05M tokens against 500k.
How much do GPT-6.1 Sol and Grok 4.7 cost per month?
At 20 million input and 5 million output tokens a month, GPT-6.1 Sol costs $90.00 and Grok 4.7 costs $70.00, at standard rates.