Anthropic

Claude Opus 4.8 Fast

Claude Opus 4.8 low-latency variant. Skips extended thinking for faster response at higher per-token cost.

claude-opus-4-8-fast

Pricing

~46%

Input: $5.37664 / 1,000,000 tokens
Output: $26.8832 / 1,000,000 tokens
Cache read: $0.537664 / 1,000,000 tokens
Cache write: $6.7208 / 1,000,000 tokens

How pricing works

Discount history

46.2%Nov 8, 03:56 AM UTC

Nov 7, 11:57 PMNov 8, 03:56 AM UTC

Model details

Input: text
Output: text
Context window: 1,000,000 tokens
Maximum output: 128,000 tokens
Availability: $8Uncapped capacity
Updated: 11/8/2026, 3:58:06 AM UTC

Capacity is reserved when your request is accepted.

Capabilities

ChatStreamingTool callingVisionJSON mode

Supported parameters

frequency_penaltymax_completion_tokensmax_tokensparallel_tool_callspresence_penaltyresponse_formatseedstopstreamstream_optionstemperaturetool_choicetoolstop_puserverbosity