Claude Sonnet 5 vs Grok 4.20 Multi Agent
Benchmark Performance
Available Benchmarks
| Benchmark | Claude Sonnet 5 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · statistical tie | 1,442.9599% of row best · rating · claude-sonnet-5-high; 95% CI [1438.22001632, 1447.67497803]; votes 31096; rank 56 | 1,450.22100% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1446.44654530, 1453.99996127]; votes 60845; rank 43 |
| LMArena Vision Arenavision-2026-08-27-011508720696 · arena_rating · leader | 1,277.94100% of row best · rating · claude-sonnet-5-high; 95% CI [1269.73992861, 1286.14906472]; votes 8522; rank 29 | 1,259.9799% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1253.56879963, 1266.36768970]; votes 22988; rank 42 |
| Overall ResultCounted from the protocol-matched rows above · 1 tie | 1 benchmark winOverall 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 Sonnet 5 | Grok 4.20 Multi-Agent |
|---|---|---|
| Developer | Anthropic | xAI |
| Family | Claude 5 | Grok 4 20 |
| Model | Claude Sonnet 5 | Grok 4.20 Multi-Agent |
| Version | Claude Sonnet 5 | Grok 4.20 Multi-Agent |
| Lifecycle | active | preview |
| Released | 2026-06-30 | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,000K | 1,000K |
| 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), Openrouter (Standard) | Xai (Standard) |
| Capabilities | chat, generation, reasoning, tools | generation, reasoning, research, tools |
13 comparable fields · 7 material differences · Pair passes the primary-source comparison gate
Claude Sonnet 5 Capabilities
Grok 4.20 Multi Agent Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Claude Sonnet 4.6Anthropic | vs | Claude Sonnet 5Anthropic | family variantsimage, text |
Claude Sonnet 5Anthropic | vs |  GPT-5.6 SolOpenAI | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs | Claude Sonnet 5Anthropic | family variantsimage, text |
Claude Sonnet 5Anthropic | vs |  Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext |
Claude Sonnet 5Anthropic | vs |  DeepSeek-V4-ProDeepSeek | cross-developer peerstext |
Claude Sonnet 5Anthropic | vs | Grok 4.6xAI | cross-developer peersimage, text |
Claude Sonnet 5Anthropic | vs |  Qwen3.8-MaxQwen | cross-developer peersimage, text |
Claude Sonnet 5Anthropic | vs |  Kimi-K3Moonshot AI | cross-developer peersimage, text |
 MiniMax-M3MiniMax | vs | Claude Sonnet 5Anthropic | cross-developer peersimage, text |
Claude Sonnet 5Anthropic | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Claude Sonnet 5Anthropic | vs |  Hy4 previewTencent | cross-developer peerstext |
Claude Sonnet 5Anthropic | vs | Seed 2.1 ProByteDance Seed | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Sonnet 5 vs Grok 4.20 Multi Agent FAQs
Is Claude Sonnet 5 or Grok 4.20 Multi Agent better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Sonnet 5 and Grok 4.20 Multi Agent, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Sonnet 5 or Grok 4.20 Multi Agent?+
Claude Sonnet 5 is $2.00 and Grok 4.20 Multi Agent is $1.25 per million tokens, so Grok 4.20 Multi Agent is cheaper on this metric. Claude Sonnet 5 is $10.00 and Grok 4.20 Multi Agent is $2.50 per million tokens, so Grok 4.20 Multi Agent is cheaper on this metric.
Which has a larger context window, Claude Sonnet 5 or Grok 4.20 Multi Agent?+
Neither model has a larger sourced context window in this comparison. Claude Sonnet 5 is 1,000K and Grok 4.20 Multi Agent is 1,000K.
Which performs better in benchmarks, Claude Sonnet 5 or Grok 4.20 Multi Agent?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can Claude Sonnet 5 or Grok 4.20 Multi Agent be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Sonnet 5 is not marked open weight; Grok 4.20 Multi Agent is not marked open weight.
Can Claude Sonnet 5 and Grok 4.20 Multi Agent understand images?+
Claude Sonnet 5 is documented with image input; Grok 4.20 Multi Agent is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Sonnet 5 or Grok 4.20 Multi Agent?+
Neither has a larger sourced maximum output. Claude Sonnet 5 is 128K and Grok 4.20 Multi Agent is —.
Do Claude Sonnet 5 and Grok 4.20 Multi Agent support reasoning and tool use?+
Claude Sonnet 5: reasoning, tool calling, and image input. Grok 4.20 Multi Agent: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Sonnet 5 or Grok 4.20 Multi Agent?+
Claude Sonnet 5 has 3 sourced provider routes; Grok 4.20 Multi Agent has 1, so Claude Sonnet 5 has broader tracked availability.
Which offers better value, Claude Sonnet 5 or Grok 4.20 Multi Agent?+
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.