Claude Opus 4.7 vs Grok 4.3
Benchmark Performance
Available Benchmarks
| Benchmark | Claude Opus 4.7 | Grok 4.3 |
|---|---|---|
| LMArena Agent Arenaagent-2026-08-31-011508720696 · outcome_score · leader | 6.33100% of row best · score · Claude Opus 4.7; 95% CI [4.91001873, 7.74575053]; sessions 37121; observations 1470793; rank 10 | -18.8176% of row best · score · Grok 4.3; 95% CI [-20.43612107, -17.19188295]; sessions 82745; observations 1299547; rank 55 |
| LMArena Search Arenasearch-2026-08-24-011508720696 · arena_rating · leader | 1,233.25100% of row best · rating · claude-opus-4-7; 95% CI [1227.87374811, 1238.63530622]; votes 91394; rank 4 | 1,164.8094% of row best · rating · grok-4.3; 95% CI [1159.64698972, 1169.95391272]; votes 91483; rank 23 |
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · leader | 1,483.21100% of row best · rating · claude-opus-4-7; 95% CI [1479.33960820, 1487.07067536]; votes 61256; rank 10 | 1,397.9794% of row best · rating · grok-4.3; 95% CI [1394.22069381, 1401.72787538]; votes 65024; rank 141 |
| LMArena Vision Arenavision-2026-08-27-011508720696 · arena_rating · leader | 1,316.40100% of row best · rating · claude-opus-4-7-high; 95% CI [1309.56408453, 1323.22870707]; votes 21137; rank 4 | 1,227.7793% of row best · rating · grok-4.3; 95% CI [1221.16111143, 1234.37137614]; votes 20787; rank 65 |
| LiveBench2026-06-25 · overall · leader | 80.97100% of row best · percent · claude-opus-4-7-xhigh-effort · 11,460 output tokens / case | 69.2786% of row best · percent · grok-4.3 · 11,184 output tokens / case |
| ToneBench2026-08-28-10-task-cd9819ab6e4d · overall_score · leader | 85.49100% of row best · points · Claude Opus 4.7 · 2,578 output tokens / case | 74.9188% of row best · points · Grok 4.3 (high) · 5,154 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 6 benchmark winsOverall lead | 0 benchmark wins |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Technical Differences
Side-by-Side Facts
| Field | Claude Opus 4.7 | Grok 4.3 |
|---|---|---|
| Developer | Anthropic | Xai |
| Family | Claude 4 | Grok 4 |
| Model | Claude Opus 4.7 | Grok 4.3 |
| Version | Claude Opus 4.7 | Grok 4.3 |
| Lifecycle | active | active |
| Released | 2026-04-16 | 2026-06-17 |
| Knowledge cutoff | 2026-01-01 | Unknown |
| Input modalities | Unknown | Unknown |
| Output modalities | Unknown | Unknown |
| Context window | 1,000,000 | 1,000,000 |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Anthropic (Standard), Deepinfra (Standard) | Xai (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, structured_outputs, tools |
12 comparable fields · 6 material differences · Interactive comparison only; indexing gate not met
Claude Opus 4.7 Capabilities
Grok 4.3 Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Claude Opus 4.6Anthropic | vs | Claude Opus 4.7Anthropic | family variantsimage, text |
Grok 4.3xAI | vs | Grok 4.5xAI | family variantsimage, text |
Claude Opus 4.5Anthropic | vs | Claude Opus 4.7Anthropic | family variantsimage, text |
Claude Opus 4.7Anthropic | vs | Claude Sonnet 4.6Anthropic | family variantsimage, text |
Grok 4.3xAI | vs | family variantsimage, text | |
Grok 4.3xAI | vs | Grok 4.6xAI | family variantsimage, text |
Claude Opus 4.6Anthropic | vs | Grok 4.3xAI | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs |  Qwen3.7 FlashQwen | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs | Qwen3.7 MaxQwen | cross-developer peersimage, text |
Claude Sonnet 4.6Anthropic | vs | Grok 4.3xAI | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs |  GPT-5.4OpenAI | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs | GPT-5.4 ProOpenAI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Opus 4.7 vs Grok 4.3 FAQs
Is Claude Opus 4.7 or Grok 4.3 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Opus 4.7 and Grok 4.3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Opus 4.7 or Grok 4.3?+
Only Claude Opus 4.7 has a directly sourced input price: $5.00 per million tokens. Only Claude Opus 4.7 has a directly sourced output price: $25.00 per million tokens.
Which has a larger context window, Claude Opus 4.7 or Grok 4.3?+
Neither model has a larger sourced context window in this comparison. Claude Opus 4.7 is 1,000,000 and Grok 4.3 is 1,000,000.
Which performs better in benchmarks, Claude Opus 4.7 or Grok 4.3?+
Claude Opus 4.7 leads the current overall benchmark count. The result uses 6 protocol-matched benchmarks from 3 publishers; it is not a universal quality score.
Can Claude Opus 4.7 or Grok 4.3 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Opus 4.7 is not marked open weight; Grok 4.3 is not marked open weight.
Can Claude Opus 4.7 and Grok 4.3 understand images?+
Claude Opus 4.7 is not documented with image input; Grok 4.3 is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Opus 4.7 or Grok 4.3?+
Neither has a larger sourced maximum output. Claude Opus 4.7 is 128,000 and Grok 4.3 is —.
Do Claude Opus 4.7 and Grok 4.3 support reasoning and tool use?+
Claude Opus 4.7: reasoning and tool calling. Grok 4.3: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Opus 4.7 or Grok 4.3?+
Claude Opus 4.7 has 2 sourced provider routes; Grok 4.3 has 1, so Claude Opus 4.7 has broader tracked availability.
Which offers better value, Claude Opus 4.7 or Grok 4.3?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.