Grok 4.20 Multi Agent vs Grok 4.3
Benchmark Performance
Available Benchmarks
| Benchmark | Grok 4.20 Multi-Agent | Grok 4.3 |
|---|---|---|
| LMArena Search Arenasearch-2026-08-24-011508720696 · arena_rating · leader | 1,204.11100% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1198.80874858, 1209.41102574]; votes 109553; rank 13 | 1,164.8097% 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 | 1,450.22100% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1446.44654530, 1453.99996127]; votes 60845; rank 43 | 1,397.9796% 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 | 1,259.97100% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1253.56879963, 1266.36768970]; votes 22988; rank 42 | 1,227.7797% of row best · rating · grok-4.3; 95% CI [1221.16111143, 1234.37137614]; votes 20787; rank 65 |
| Overall ResultCounted from the protocol-matched rows above | 3 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 | Grok 4.20 Multi-Agent | Grok 4.3 |
|---|---|---|
| Developer | xAI | xAI |
| Family | Grok 4 20 | Grok 4 |
| Model | Grok 4.20 Multi-Agent | Grok 4.3 |
| Version | Grok 4.20 Multi-Agent | Grok 4.3 |
| Lifecycle | preview | active |
| Released | Unknown | 2026-06-17 |
| 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 | Xai (Standard) | Xai (Standard) |
| Capabilities | generation, reasoning, research, tools | chat, generation, reasoning, structured_outputs, tools |
13 comparable fields · 5 material differences · Pair passes the primary-source comparison gate
Grok 4.20 Multi Agent Capabilities
Grok 4.3 Capabilities
Internal Comparison Graph
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Primary Evidence
Sources and Freshness
Questions
Grok 4.20 Multi Agent vs Grok 4.3 FAQs
Is Grok 4.20 Multi Agent or Grok 4.3 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Grok 4.20 Multi Agent and Grok 4.3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Grok 4.20 Multi Agent or Grok 4.3?+
Grok 4.20 Multi Agent is $1.25 and Grok 4.3 is $1.25 per million tokens, so they are tied on this metric. Grok 4.20 Multi Agent is $2.50 and Grok 4.3 is $2.50 per million tokens, so they are tied on this metric.
Which has a larger context window, Grok 4.20 Multi Agent or Grok 4.3?+
Neither model has a larger sourced context window in this comparison. Grok 4.20 Multi Agent is 1,000K and Grok 4.3 is 1,000K.
Which performs better in benchmarks, Grok 4.20 Multi Agent or Grok 4.3?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can Grok 4.20 Multi Agent or Grok 4.3 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Grok 4.20 Multi Agent is not marked open weight; Grok 4.3 is not marked open weight.
Can Grok 4.20 Multi Agent and Grok 4.3 understand images?+
Grok 4.20 Multi Agent is documented with image input; Grok 4.3 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Grok 4.20 Multi Agent or Grok 4.3?+
Neither has a larger sourced maximum output. Grok 4.20 Multi Agent is — and Grok 4.3 is —.
Do Grok 4.20 Multi Agent and Grok 4.3 support reasoning and tool use?+
Grok 4.20 Multi Agent: reasoning, tool calling, and image input. Grok 4.3: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Grok 4.20 Multi Agent or Grok 4.3?+
Grok 4.20 Multi Agent has 1 sourced provider route; Grok 4.3 has 1, a tie.
Which offers better value, Grok 4.20 Multi Agent 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.