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Claude Haiku 4.5 is Anthropic's fast, affordable small model in the Claude 4 generation, balancing strong instruction-following and coding ability with low latency. It is designed for high-throughput agentic and chat applications where speed and cost efficiency are priorities.
Document analysis#31Mathematical#100Software & IT Services#101Writing, Literature, & Language#110
AuthorAnthropic
Country🇺🇸 United States
ReleasedOct 15, 2025
Overview
Cost rate
1x
Context
200K
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$1.00
Cached input$0.10
Output$5.00
Context
Context length200,000
Max output tokens64,000
Knowledge cutoff-
Performance
Throughput94 tok/s
Latency0.78s
GPT-4.1 Nano is OpenAI's smallest and fastest GPT-4.1 variant, optimized for extremely low-latency, low-cost tasks such as classification, extraction, and simple chat. This is the batch variant for asynchronous, lower-cost processing.
Image understanding#119Legal & Government#206Software & IT Services#221Life, Physical, & Social Science#221
AuthorOpenAI
Country🇺🇸 United States
ReleasedApr 14, 2025
Overview
Cost rate
0.1x
Context
1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$0.05
Cached input$0.01
Output$0.20
Context
Context length1,047,576
Max output tokens32,768
Knowledge cutoff2024-06-30
Performance
Throughput-
Latency-
Benchmarks
Head-to-head scores across reasoning, coding, and agentic indices, plus per-domain rankings.
Intelligence
62.5
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)62.1Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback)
Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback)59.5
