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This is OpenRouter's auto-updating alias to OpenAI's current 'Sol' model, always resolving to the newest release in that family (1.05M-token context) rather than a pinned snapshot. Sol has been positioned as OpenAI's flagship-tier alias, priced below the newer, more expensive Astra alias in the same family.
Mathematical#2Software & IT Services#8Image understanding#8Legal & Government#11
AuthorOpenAI
Country🇺🇸 United States
ReleasedSep 11, 2026
Overview
Cost rate
2x
Context
1.1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$2.00
Cached input$0.10
Output$10.00
Context
Context length1,050,000
Max output tokens128,000
Knowledge cutoff-
Performance
Throughput45 tok/s
Latency4.12s
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
