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grok-4.1 vs Fusion

Fusion is cheaper on output tokens, while Fusion offers a larger context window. Choose grok-4.1 or Fusion based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Specgrok-4.1Fusion
Provider302.AIOpenRouter
Input / 1M tokens$2.00$-1,000,000.00
Output / 1M tokens$10.00$-1,000,000.00
Context window200K1M
Parameters——
Open weightsNo—
ReleasedNov 2025—
LMArena (Chatbot Arena) Elo score1436—
LMArena WebDev Elo score1214—

FAQ

Is grok-4.1 or Fusion cheaper?

Fusion is cheaper on output tokens ($-1,000,000.00 vs $10.00 per 1M).

Which has the larger context window, grok-4.1 or Fusion?

Fusion has the larger context window (1M tokens).

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.