High-volume, cost-sensitive work
Either one
Both cost $3.00 per million tokens on a typical mix of three input tokens for every output token.
Choose Grok 4.5 for reused prompts and documents (RAG, agents) and reasoning over long documents. Choose Grok 4.7 for the hardest reasoning tasks and the latest release.
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Either one
Both cost $3.00 per million tokens on a typical mix of three input tokens for every output token.
Choose Grok 4.5
Grok 4.5 charges $0.30 per million cached input tokens, against $0.50 for Grok 4.7.
Choose Grok 4.7
Grok 4.7 scores 46.4 on the Artificial Analysis Intelligence Index, against 38.8 for Grok 4.5.
Choose Grok 4.5
Grok 4.5 scores 79.3% on Long-context reasoning (AA-LCR), against 76.7% for Grok 4.7.
Choose Grok 4.7
Grok 4.7 is the newer release (September 2026, against July 2026 for Grok 4.5).
| Volume | Grok 4.5 | Grok 4.7 | Difference |
|---|---|---|---|
| Prototype: 1M input, 250K output tokens | $3.50 | $3.50 | = |
| Production: 20M input, 5M output tokens | $70.00 | $70.00 | = |
| Scale: 500M input, 100M output tokens | $1,600 | $1,600 | = |
Standard rates, without caching or batch discounts. Volumes are per month.
| Grok 4.5 | Grok 4.7 | |
|---|---|---|
| Provider | xAI | xAI |
| Category | Language models | Language models |
| Status | Legacy | Generally available |
| Headline price | $3.00 / 1M tokens | $3.00 / 1M tokens |
| Input | $2.00 / 1M tokens | $2.00 / 1M tokens |
| Output | $6.00 / 1M tokens | $6.00 / 1M tokens |
| Cached input | $0.30 / 1M tokens | $0.50 / 1M tokens |
| Context window | 500k | 500k |
| Max output | No data | No data |
| Released | July 2026 | September 2026 |
| Knowledge cutoff | No data | 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 | grok-4.5 | grok-4.7 |
Leader in bold.
| Benchmark | Grok 4.5 | Grok 4.7 |
|---|---|---|
| Intelligence Index | 38.8 | 46.4 |
| SciCode | 55% | 57.4% |
| Humanity's Last Exam | 42.7% | 43.1% |
| Long-context reasoning (AA-LCR) | 79.3% | 76.7% |
| GPQA Diamond | 93.1% | No data |
| MMMU-Pro (visual reasoning) | 80.4% | 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.
Choose Grok 4.5 for reused prompts and documents (RAG, agents) and reasoning over long documents. Choose Grok 4.7 for the hardest reasoning tasks and the latest release.
Both cost the same at the headline price ($3.00 / 1M tokens).
Both accept 500k tokens per request.
Grok 4.5 is made by xAI and Grok 4.7 by xAI. Both cost the same at the headline price ($3.00 / 1M tokens). Both accept 500k tokens per request. Grok 4.7 is the newer model (September 2026, against July 2026).
At 20 million input and 5 million output tokens a month, Grok 4.5 costs $70.00 and Grok 4.7 costs $70.00, at standard rates.
Grok 4.7 was released on September 2026 and Grok 4.5 on July 2026.