Claude Opus 4.8
Editorial notes
Lanzado 28 mayo 2026. Flagship GA. Upgrade directo a mismo precio $5/$25 per MTok (fast mode opcional $10/$50, 3x mas barato que prior fast). 1M context, 128K max output, text+image, knowledge cutoff enero 2026 (model id anthropic.claude-opus-4-8). Nuevo: parallel-subagent dynamic workflows en Claude Code, mid-task system messages en Messages API, user-controllable effort level. Scores del System Card oficial (extraidos via Vellum/llm-stats — el PDF excedio fetch limit; identity/specs primary-confirmed via anthropic.com + AWS Bedrock). Otros scores System Card: Terminal-Bench 2.1 74.6, HLE con tools 57.9, Online-Mind2Web 84, Finance Agent v2 53.9. Caveat: GPQA Diamond 93.6 es el unico bench donde 4.8 va ligeramente debajo de Opus 4.7 (94.2).
Spec sheet
- Company
- Anthropic
- Country
- US
- Type
- hybrid
- Release
- 2026-05
- Context
- 1.0M tokens
- Slug
- claude-opus-4-8
Benchmarks (5)
Reasoning 2
Coding 2
Cite this model
BibTeX · APA
BibTeX
@misc{frontier-claude-opus-4-8,
title = {Claude Opus 4.8},
author = {{Anthropic}},
year = {2026},
note = {Frontier Benchmarks AI atlas. Accessed 2026-06-10},
url = {https://frontierbenchmarks.com/models/claude-opus-4-8}
} APA
Anthropic (2026). Claude Opus 4.8 [Large language model]. Frontier Benchmarks AI. Retrieved 2026-06-10, from https://frontierbenchmarks.com/models/claude-opus-4-8
Citation reflects the atlas page, not the original model paper. For the paper, see the "Resources" section above.