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Claude Opus 4.8 benchmarks, ranks and price

Where Artificial Analysis, LiveBench, LMArena and Berkeley BFCL place Claude Opus 4.8, what it costs through OpenRouter and Vercel AI Gateway, and the models either side of it on the consensus.

Updated Oct 12, 2026Full leaderboardSources and method

Read Oct 12, 2026

#6of 122

on the LLM leaderboard, with a consensus score of 81 across 3 leaderboards.

Source: Artificial Analysis, LiveBench, LMArena and Berkeley BFCL, combined by Rank.ai.

By leaderboard

Where each leaderboard places Claude Opus 4.8

Artificial Analysis

#6of 111

Score 41.8. Best run: anthropic/claude-opus-4.8.

Intelligence Index: a composite of reasoning, knowledge, maths and coding evaluations.

LiveBench

#5of 36

Score 78.9. Best run: Claude Opus 4.8 xHigh Effort.

Contamination-limited questions refreshed each release: reasoning, maths, coding, data analysis, language.

LMArena

#10of 112

Score 1484. Best run: claude-opus-4-8-thinking.

Blind head-to-head human votes, style controlled.

Berkeley BFCL

Not measured by Berkeley BFCL.

Function calling and tool use, single turn to multi turn and web search.

Price and context

$10

OpenRouter: $5.00 in, $25 out. Vercel AI Gateway: $5.00 in, $25 out Context window 1M tokens. LiveBench cost per solved task $0.688.

Nearby

The models either side of Claude Opus 4.8

  1. #3Claude Opus 583
  2. #4GPT-5.582
  3. #5Kimi K382
  4. #6Claude Opus 4.881
  5. #7gemini-3-pro80
  6. #8Claude Opus 4.780
  7. #9GPT-5.479

Questions about Claude Opus 4.8

How good is Claude Opus 4.8?
Claude Opus 4.8 ranks #6 of 122 models on the Rank.ai LLM leaderboard, with a consensus score of 81 out of 100 across 3 leaderboards.
Is Claude Opus 4.8 better than Kimi K3?
Not on the consensus: Kimi K3 scores 82 to Claude Opus 4.8's 81. Compare them source by source below, since the leaderboards test different things.
Is Claude Opus 4.8 better than gemini-3-pro?
On the consensus, yes: 81 to 80.
How much does Claude Opus 4.8 cost?
$5.00 per million input tokens and $25 per million output tokens on OpenRouter, the cheaper listing we read. Blended at three input tokens to one output, that is $10 per million.
Is Claude Opus 4.8 good for coding?
It scores 74.3 on the Artificial Analysis Coding Index, placing it #7 for coding among the models on this leaderboard.

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