LLM Digest

Model Release Radar

Price/capability frontier position, benchmark scores, and community signal

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Model Release Radar

Claude Opus 4.8

anthropic·closed weights·Proprietary·released Thursday, May 28, 2026

Token prices

USD per million tokens via OpenRouter, Anthropic (anthropic). Checked 2026-10-17 00:21 UTC.

Cache-write rates with a verified basis replace the ordinary input charge. Unknown rates are never treated as zero.

Frontier position

Behind frontier AA coding index (blended per-1M-token price, 3:1 input/output; not a measured per-task cost) - Claude Opus 5, GPT-5.6 Sol, Kimi K3, Qwen3.8 Max (0902), Grok 4.6 are priced the same or lower and at least as capable.
Behind frontier AA intelligence index (blended per-1M-token price, 3:1 input/output; not a measured per-task cost) - Claude Opus 5, Claude Opus 5.5, Muse Wonder, GPT-5.6 Sol, Kimi K3 are priced the same or lower and at least as capable.
Behind frontier DeepSWE pass@1 (agentic coding) (measured USD per task) - GLM-5.3, Muse Spark 1.2, GPT-5.6 Sol, Grok 4.6, Claude Opus 5 are priced the same or lower and at least as capable.

Cost vs. capability

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Benchmark scores

Benchmark	Pass@1	Measured cost / task	Frontier
DeepSWE (agentic coding) (max effort, 95% CI 57.2%-60.7%, 4 runs)	59.0%	$13.22 (median $12.35)	behind

Artificial Analysis scores describe capability. Compare them against estimated token spend with your cache mix; these estimates are not measured task costs.

Benchmark	Score
AA intelligence index	41.8
AA coding index	74.3

Variants

This page covers 2 reasoning-effort variants of the same model.

Variant	AA coding index	AA intelligence index	Blended /1M (3:1 input/output)
Standard (shown above)	74.3	41.8	$10/1M
High effort	-	-	$10/1M

Community signal

Variant	Coding Elo	Overall Elo	Votes
High effort	1,491	1,461	64,100
Standard	1,487	1,454	65,172