Anthropic: Claude Opus 4.8 (Fast)

anthropic/claude-opus-4.8-fast

CHAT Frontier tier ReasoningMultimodal

Anthropic: Claude Opus 4.8 (Fast) (anthropic/claude-opus-4.8-fast) is a chat model from openrouter with a 1M-token context window; capabilities tools, reasoning, vision; input image, pdf, text; output text.

1MContext

128KMax output

$10$ / 1M in

Pricing

Input: $10 / 1M tokens
Output: $50 / 1M tokens
Currency: USD
Note: Indicative US list price — verify with the vendor.

Indicative US list price — a reference only, verify with the vendor. Source: openrouter. Last verified 2026-07-24.

Specifications

Context window: 1,000,000 tokens (1M)
Max output: 128,000 tokens
Input modalities: image pdf text
Output modalities: text

Capabilities

tools reasoning vision

Provenance

committedopenrouter-api

Last verified: 2026-07-24

Related models

MoonshotAI: Kimi K3

moonshotai/kimi-k3

openrouter · CHAT · 1.0M ctx

xAI: Grok 4.5

x-ai/grok-4.5

openrouter · CHAT · 500K ctx

Meta: Muse Spark 1.1

meta/muse-spark-1.1

openrouter · CHAT · 1.0M ctx

Qwen: Qwen3.7 Max

qwen/qwen3.7-max

openrouter · CHAT · 1M ctx

Xiaomi: MiMo-V2.5-Pro

xiaomi/mimo-v2.5-pro

openrouter · CHAT · 1.0M ctx

Tencent: Hy3

tencent/hy3

openrouter · CHAT · 262.1K ctx

Markdown · Vendor JSON · Full catalog · All openrouter models