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Pareto 26.9 is the pinned September 2026 release of Unbiased's Pareto model family (262K context, text and image input, text output). It is the stable choice in the family, as newer previews may change without notice.
Author-
Country-
ReleasedOct 13, 2026
Overview
Cost rate
1.5x
Context
262K
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$2.50
Cached input$0.25
Output$7.50
Context
Context length262,144
Max output tokens131,072
Knowledge cutoff-
Performance
Throughput-
Latency-
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#42Software & IT Services#116Mathematical#120Writing, Literature, & Language#127
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
Throughput89 tok/s
Latency0.52s
Benchmarks
Head-to-head scores across reasoning, coding, and agentic indices, plus per-domain rankings.
Intelligence
57.6
Claude Opus 5.5 (Max, Default Fallback)
Claude Opus 5.5 (Max, Default Fallback)56.0Claude Sonnet 5.5 (Max, Default Fallback)
Claude Sonnet 5.5 (Max, Default Fallback)53.4
