Grok 4.20 Multi Agent vs GLM 5.1
At a Glance
| Compare |  GLM 5.1Z.ai | |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #22 of 4663.4 score · 2/3 sources · provisional · missing LiveBench · full-core range 42.3–75.6 | UnrankedNot in the 46-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $1.25Xai ↗ · Sep 3, 2026 | $1.05Deepinfra ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | $2.50Xai ↗ · Sep 3, 2026 | $3.50Deepinfra ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | 1,000K | 203K |
| Model facts checked | Aug 29, 2026View model evidence → | Aug 28, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | Grok 4.20 Multi-Agent | GLM-5.1 |
|---|---|---|
| LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · leader | 1,449.9499% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1446.16660741, 1453.71198087]; votes 60777; rank 46 | 1,462.38100% of row best · rating · glm-5.1; 95% CI [1458.52340519, 1466.22702609]; votes 48901; rank 33 |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark winsNo overall winner | 1 benchmark winNo overall winner |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | Grok 4.20 Multi-Agent | GLM-5.1 |
|---|---|---|
| Developer | xAI | Z.ai |
| Family | Grok 4 20 | Glm 5 1 |
| Model | Grok 4.20 Multi-Agent | GLM-5.1 |
| Version | Grok 4.20 Multi-Agent | GLM-5.1 |
| Lifecycle | preview | active |
| Released | Unknown | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 1,000K | 203K |
| Total parameters | Unknown | 753.9B |
| Active parameters | Unknown | Unknown |
| License | Unknown | mit |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Xai (Standard) | Deepinfra (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Standard) |
| Capabilities | generation, reasoning, research, tools | chat, generation, reasoning, tools |
Grok 4.20 Multi Agent Capabilities
GLM 5.1 Capabilities
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Primary Evidence
Sources and Freshness
Questions
Grok 4.20 Multi Agent vs GLM 5.1 FAQs
Is Grok 4.20 Multi Agent or GLM 5.1 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Grok 4.20 Multi Agent and GLM 5.1, 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 GLM 5.1?+
Grok 4.20 Multi Agent is $1.25 and GLM 5.1 is $1.05 per million tokens, so GLM 5.1 is cheaper on this metric. Grok 4.20 Multi Agent is $2.50 and GLM 5.1 is $3.50 per million tokens, so Grok 4.20 Multi Agent is cheaper on this metric.
Which has a larger context window, Grok 4.20 Multi Agent or GLM 5.1?+
Grok 4.20 Multi Agent has the larger sourced context window. Grok 4.20 Multi Agent supports 1,000K and GLM 5.1 supports 203K.
Which performs better in benchmarks, Grok 4.20 Multi Agent or GLM 5.1?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Grok 4.20 Multi Agent or GLM 5.1 be self-hosted?+
GLM 5.1 is the only model in this pair currently marked as self-hostable. Grok 4.20 Multi Agent is not marked open weight; GLM 5.1 is open weight.
Can Grok 4.20 Multi Agent and GLM 5.1 understand images?+
Grok 4.20 Multi Agent is documented with image input; GLM 5.1 is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Grok 4.20 Multi Agent or GLM 5.1?+
Neither has a larger sourced maximum output. Grok 4.20 Multi Agent is — and GLM 5.1 is —.
Do Grok 4.20 Multi Agent and GLM 5.1 support reasoning and tool use?+
Grok 4.20 Multi Agent: reasoning, tool calling, and image input. GLM 5.1: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Grok 4.20 Multi Agent or GLM 5.1?+
Grok 4.20 Multi Agent has 1 sourced provider route; GLM 5.1 has 4, so GLM 5.1 has broader tracked availability.
Which offers better value, Grok 4.20 Multi Agent or GLM 5.1?+
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.