Claude Opus 4.8

AnthropicMULTIMODAL Proprietary
Provider
Anthropic
Modality
MULTIMODAL
Parameters
Context window
1,000,000 tokens
Weights
Proprietary
Released
28 May 2026
Compare Claude Opus 4.8 with others

Claude Opus 4.8 (May 2026) is Anthropic's top tier — best-in-class agentic coding and reasoning, a 1M-token context and careful, low-error output, priced and paced as a flagship.

Best for

  • Hardest reasoning and long-horizon agentic coding
  • Frontier math, science and complex multi-file refactors
  • Whole-codebase / large-document analysis (1M context)
  • When you need the most capable widely-available Claude

How it compares — and the India angle

  • Most expensive and slowest tier — Sonnet 4.6 gives ~99% of its coding quality at far lower cost and ~2x speed.
  • Indian teams pay in USD ($5/$25 per 1M) — reserve Opus for genuinely hard tasks, route bulk work to Sonnet/Haiku.
  • Trades blows with Gemini 3.1 Pro on science (GPQA) but leads on SWE-bench coding.

Benchmarks

Representative public scores (approximate, higher is better) for relative comparison. Check the provider for the latest official results.

GPQA Diamond94
SWE-bench Verified89

How to access

API ~$5 / 1M input, ~$25 / 1M output. Claude Pro/Max (~$20/mo, no India INR plan — ~₹1,800+ after FX/tax).

Access Claude Opus 4.8
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