Grok 4.7 vs Claude Opus 5.5
Grok 4.7 costs $2.00 / $6.00 and Claude Opus 5.5 costs $4.00 / $20.00 per million input / output tokens. At a typical 3:1 mix, Grok 4.7 is 2.7× cheaper than Claude Opus 5.5. But Claude Opus 5.5 scores clearly higher on Epoch AI’s Capabilities Index (169 vs 156, beyond the margin of error).
Price
Grok 4.7 is 2.7× cheaper per token
On a coding agent: $772 vs $853 a month (10% less)
Capability
Claude Opus 5.5 scores higher
Grok 4.7 156 (154–158)
Claude Opus 5.5 169 (166–172)
Claude Opus 5.5 169 (166–172)
Best value at Claude Opus 5.5’s level
GPT-6.1 Terra, 4× less
Level with or above Claude Opus 5.5 · $213 a month on a coding agent · Every option
Input
$2.00
per 1M
Output
$6.00
per 1M
Cached
$0.50
500K context
Input
$4.00
per 1M
Output
$20.00
per 1M
Cached
$0.20
1M context
Side by side
✓ marks the cheaper price, larger context window, bigger discount or higher score.
| Detail | Grok 4.7 | Claude Opus 5.5 |
|---|---|---|
| Price per 1M tokens | ||
| Input | $2.00Lowest | $4.00 |
| Output | $6.00Lowest | $20.00 |
| Blended (3 in : 1 out) | $3.00Lowest | $8.00 |
| Cached input | $0.50 | $0.20Lowest |
| Batch or off-peak discount | None | 50% (batch)Largest |
| Long prompts | Over 200K: $4 / $12 | Same rate at any length |
| Limits and model | ||
| Context window | 500K | 1MLargest |
| Capability score Epoch AI index | 156 | 169Highest |
| Arena text score 25 Sep 2026 | — | 1509 |
| Released | 21 Sep 2026 | 22 Sep 2026 |
| Open weights | No | No |
| Status | Current | Current |
| Checked | ||
| Price checked | 13 Oct 2026 xAI pricing | 11 Nov 2026 Anthropic pricing |
Monthly cost on three workloads
List prices, no batch discount. The cached share applies where a model has a cache rate.
| Workload | Grok 4.7 | Claude Opus 5.5 | Difference |
|---|---|---|---|
| Customer chat assistant50,000 conversations a month, about 2,000 tokens in and 400 out each; 50% cachedPrice this workload in the calculator | $245Lower | $610 | $365 |
| Document Q&A (RAG)20,000 questions a month over retrieved documents, 12,000 in and 600 out; 30% cachedPrice this workload in the calculator | $444Lower | $926 | $482 |
| Coding agent400 tasks a month, 40 steps each with a growing context; 85% cachedPrice this workload in the calculator | $592Lower | $738 | $146 |
How they differ
- Grok 4.7 is cheaper on input ($2 vs $4).
- Grok 4.7 is cheaper on output ($6 vs $20), which matters most for long answers and reasoning models.
- Claude Opus 5.5 accepts longer prompts (1M vs 500K tokens).
- Cached input is cheaper on Claude Opus 5.5 ($0.20 vs $0.50), which favours agents and chat apps that resend the same context.
- Only Claude Opus 5.5 offers a batch discount for jobs that can wait.
- On Epoch AI’s Capabilities Index, Claude Opus 5.5 scores clearly higher (169 vs 156), beyond the margin of error.
Recent changes
All changes- ▼ 20%Claude Opus 5.5 launched at $4 / $20 per 1M tokens, 20% below Opus 5.
$5 / $25→ $4 / $20 - xAI launched Grok 4.7 at $2 / $6 for prompts under 200K tokens.
- xAI launched Grok 4.6 at $2 / $6.
- Anthropic retired Claude Opus 4.1.
- Anthropic launched Claude Opus 5 at $5 / $25.
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