Claude Opus 4.8
It processes text, images, and files to generate text and assist with reasoning.
anthropic’s large language model, able to hold about 1000k tokens of context (roughly 750k words) in one conversation, working across text and image and file->text. You reach it through an API or through tools built on it. Built for anyone who needs to analyze text, images, and files. anthropic describes it as: “Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family.” source ↗
Our tested score
Battle record
unfought
no battle yet — we don't guess
Forum sentiment — 90d to 12 Aug 2026
50%
developer-forum posts: 12 opinions in 109
stale — measured 40 days ago, not re-swept since
What people are posting (90 days)
Loudest post this quarter
“Is Claude pro subscription worth it without Fable 5?”
Compare Claude Opus 4.8 against…
GPT-5.6 Luna · spreadsheets & ExcelGPT-5.6 Terra · spreadsheets & ExcelGPT-5.3-Codex · spreadsheets & ExcelGPT-5.6 Sol · spreadsheets & ExcelGPT-5.5 · spreadsheets & ExcelGLM 5.2 · spreadsheets & ExcelQwen3.7 Max · spreadsheets & ExcelGrok 4.5 · spreadsheets & ExcelDeepSeek V4 Flash · spreadsheets & ExcelGPT-5.5 · summarising documentsGPT-5.6 Luna · summarising documentsGPT-5.6 Terra · summarising documentsGPT-5.3-Codex · summarising documentsDeepSeek V4 Pro · summarising documentsGPT-5.6 Sol · summarising documentsClaude Sonnet 5 · summarising documentsClaude Opus 4.6 · summarising documentsClaude Fable 5 · summarising documentsGPT-5.6 Terra · everyday maths
Every claim we hold (6)
- api price in per 1m5 USD/1M tokensOpenRouter API21 Sept 2026stale
- api price out per 1m25 USD/1M tokensOpenRouter API21 Sept 2026stale
- arena elo text1453 EloLMArena leaderboard (CC-BY-4.0)14 Sept 2026verified
- arena rank text40 rankLMArena leaderboard (CC-BY-4.0)14 Sept 2026verified
- arena votes text53446 votesLMArena leaderboard (CC-BY-4.0)14 Sept 2026verified
- context length1000000 tokensOpenRouter API21 Sept 2026stale