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Head-to-head comparison

Qwen3.8 27B vs Grok 4.20 Multi-Agent

Qwen3.8 27B (Qwen) and Grok 4.20 Multi-Agent (xAI) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 17 August 2026

As of 17 August 2026, Grok 4.20 Multi-Agent holds the stronger ModelCap Index position (#15 vs #16); Grok 4.20 Multi-Agent is 1.3× cheaper per output token ($2.50/1M vs $3.20/1M); Grok 4.20 Multi-Agent offers the longer context window (2M vs 262K tokens); and Qwen3.8 27B ships open weights.

Which should you choose?

Choose Qwen3.8 27B if…

  • your workload is prompt-heavy — input tokens cost $0.45/1M against $1.25/1M.
  • you want to self-host: Qwen3.8 27B ships open weights while Grok 4.20 Multi-Agent is api only.
  • you want provider choice — 3 listed API providers against 1.
  • you want the more recently listed model — Qwen3.8 27B was listed 14 August 2026, Grok 4.20 Multi-Agent 31 March 2026.

Choose Grok 4.20 Multi-Agent if…

  • you want the stronger overall ModelCap Index position — #15 against #16 (73.0 vs 69.6 points).
  • API cost matters — $2.50/1M output tokens against $3.20/1M, about 1.3× cheaper.
  • you need the longer context window — 2M tokens against 262K.

Qwen3.8 27B vs Grok 4.20 Multi-Agent: specs, pricing and context

Specification comparison of Qwen3.8 27B and Grok 4.20 Multi-Agent
FieldQwen3.8 27BQwenGrok 4.20 Multi-AgentxAI
ModelCap Index position#16#15
Index score69.673.0
EvidenceMeasuredMeasured
Input price / 1M tokens$0.45$1.25
Output price / 1M tokens$3.20$2.50
Context window262K tokens2M tokens
Max output tokens131K—
API providers listed31
Weight accessOpen weightsAPI only
Input modalitiesText, Image, VideoText, Image, File
First listed14 August 202631 March 2026
PublisherQwenxAI

Evidence: 1 public benchmark observation across 1 board · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Qwen3.8 27B vs Grok 4.20 Multi-Agent

Public benchmark boards where Qwen3.8 27B or Grok 4.20 Multi-Agent has a published result
BoardQwen3.8 27BGrok 4.20 Multi-AgentLeads
Arena codingArena (LMArena)—15081502–1514Beta · 0309Only one result
Artificial Analysis Intelligence IndexArtificial Analysis52.0intelligence-index—Only one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Qwen3.8 27B vs Grok 4.20 Multi-Agent: common questions

Is Qwen3.8 27B better than Grok 4.20 Multi-Agent?

Grok 4.20 Multi-Agent ranks higher on the ModelCap Index as of 17 August 2026: #15 against #16. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is Qwen3.8 27B cheaper than Grok 4.20 Multi-Agent?

Grok 4.20 Multi-Agent is cheaper on output tokens: $2.50/1M against $3.20/1M. Input tokens are $0.45/1M for Qwen3.8 27B and $1.25/1M for Grok 4.20 Multi-Agent. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, Qwen3.8 27B or Grok 4.20 Multi-Agent?

Grok 4.20 Multi-Agent has the larger context window: 2M tokens against 262K.

Which is better for coding, Qwen3.8 27B or Grok 4.20 Multi-Agent?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Qwen3.8 27B and Grok 4.20 Multi-Agent open-weight models?

Qwen3.8 27B: Open weights. Grok 4.20 Multi-Agent: API only. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Qwen3.8 27B and Grok 4.20 Multi-Agent?

ModelCap currently lists 3 API providers for Qwen3.8 27B and 1 for Grok 4.20 Multi-Agent, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Qwen3.8 27B vs Grok 4.20 Multi-Agent comparison?

Every figure comes from the sealed ModelCap dataset published 17 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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