# Grok 4.5 vs Grok 4.7

Grok 4.7 is one of xAI's newest models and Grok 4.5 an earlier one, so this is also what moving up costs or saves. Grok 4.5 and Grok 4.7 charge the same per token: $2 per million tokens read and $6 per million written. The bill can still differ, because the same text can be a different number of tokens on each. Below are both price lists, 8 everyday jobs priced on each, and the count for one text.

- Page, with a calculator for your own job: https://tecyfy.com/prices/compare/grok-4-5-vs-grok-4-7
- Makers: Grok 4.5 from xAI, Grok 4.7 from xAI

## Price per million tokens, in US dollars

| | Grok 4.5 | Grok 4.7 |
| --- | --: | --: |
| Input | $2 | $2 |
| Cached input | $0.30 | $0.50 |
| Cache write | not listed | not listed |
| Output | $6 | $6 |
| Blend, 3 read for each 1 written | $3 | $3 |
| Batch input | not listed | not listed |
| Batch output | not listed | not listed |
| Long prompt input (above 200K on Grok 4.5, 200K on Grok 4.7) | $4 | $4 |
| Long prompt output | $12 | $12 |
| Context window, tokens | 500K | 500K |
| Capability score (Epoch Capabilities Index; GPT-5 is 150) | 154 | 154 |
| Longest answer, tokens | not listed | not listed |

## What 8 everyday jobs cost a month on each

Each job at its usual runs a day, for 30 days, at the standard price.

| Job | Tokens in, out, runs a day | Grok 4.5 | Grok 4.7 |
| --- | --- | --: | --: |
| A chat question | 300, 500, 100 | $10.80 | $10.80 |
| A hard question, with thinking | 300, 1,400, 100 | $27.00 | $27.00 |
| A long report, summarised | 60,000, 2,000, 20 | $79.20 | $79.20 |
| A 40-turn agent task | 2,800,000, 40,000, 10 | $467 | $618 |
| A support bot's reply | 4,000, 300, 2,000 | $384 | $408 |
| Sort a message into a category | 250, 5, 50,000 | $795 | $795 |
| Read an invoice into fields | 1,500, 250, 1,000 | $135 | $135 |
| Review a pull request | 25,000, 4,500, 50 | $116 | $116 |

## Questions

### Which is cheaper, Grok 4.5 or Grok 4.7?

Per token, neither: both charge $2 per million tokens read and $6 per million written. The same text can still be a different number of tokens on each, so the bills can differ.

### Which is better, Grok 4.5 or Grok 4.7?

They cannot be told apart on the Epoch Capabilities Index, an independent score from Epoch AI that combines over 50 benchmarks: Grok 4.5 scores 154 and Grok 4.7 154, within the range of doubt around each (GPT-5 is 150). So choose on price and on 10 tasks of your own.

### What does a support bot cost a month on Grok 4.5 and Grok 4.7?

At 2,000 replies a day, each reading 4,000 tokens (50 percent of them from cache) and writing 300, it costs $384 a month on Grok 4.5 and $408 on Grok 4.7: Grok 4.7 costs 1.1 times as much for this job.

### What does an AI agent task cost on Grok 4.5 and Grok 4.7?

One 40-turn task that reads 2,800,000 tokens in all, 90 percent of them from cache, and writes 40,000, costs $1.56 on Grok 4.5 and $2.06 on Grok 4.7. At 10 tasks a day that is $467 and $618 a month.

### Which has the larger context window, Grok 4.5 or Grok 4.7?

Neither: both hold 500K tokens at once, about 750 pages of English text.

### Does the same text take the same number of tokens on Grok 4.5 and Grok 4.7?

Yes, both are counted the same way: our lesson "How AI writes", 1,700 words long, is about 2,100 tokens on each.

### Is it cheaper to move from Grok 4.5 to Grok 4.7?

Per token it costs the same: $2 per million tokens read and $6 written on both. The newer model may still use a different number of tokens for the same work.

### Can I pay less on Grok 4.5 and Grok 4.7 for work that can wait?

Not with a batch price: neither maker's price page lists one for these models. A cache still lowers the price of text the model reads again.

## Sources

- [xAI: API prices](https://docs.x.ai/docs/models)
- [Epoch Capabilities Index, by Epoch AI (CC BY 4.0)](https://epoch.ai/benchmarks/eci)

## Other comparisons

- [Grok 4.6 vs Grok 4.7](https://tecyfy.com/prices/compare/grok-4-6-vs-grok-4-7.md)
- [Grok 4.3 vs Grok 4.7](https://tecyfy.com/prices/compare/grok-4-3-vs-grok-4-7.md)
- [Grok 4.20 (reasoning) vs Grok 4.7](https://tecyfy.com/prices/compare/grok-4-20-0309-reasoning-vs-grok-4-7.md)
- [Grok 4.20 (non-reasoning) vs Grok 4.7](https://tecyfy.com/prices/compare/grok-4-20-0309-non-reasoning-vs-grok-4-7.md)
- [Grok 4.7 vs Grok Build 0.1](https://tecyfy.com/prices/compare/grok-4-7-vs-grok-build-0-1.md)
- [Grok 4.20 Multi-agent vs Grok 4.7](https://tecyfy.com/prices/compare/grok-4-20-multi-agent-0309-vs-grok-4-7.md)