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Put models side by side on price, context, capabilities, and benchmarks.
GPT-5.6 Sol is the flagship tier of OpenAI's GPT-5.6 family, built for complex reasoning, multi-step coding, and long-horizon agentic work, with particular strength on command-line and terminal-driven tasks.
Entertainment, Sports, & Media#7Writing, Literature, & Language#8Mathematical#9Document analysis#11
Cost rate
3x
Context
1.1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$2.50
Cached input$0.25
Output$15.00
Context
Context length1,050,000
Max output tokens128,000
Knowledge cutoff2026-02-16
Performance
Throughput63 tok/s
Latency4.56s
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family at this point in the lineup, supporting text, image, and file input with reasoning and a 1M-token context window. It is aimed at the highest-difficulty coding, analysis, and agentic tasks.
Business, Management, & Finance#9Software & IT Services#10Writing, Literature, & Language#12Mathematical#12
Cost rate
5x
Context
1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$5.00
Cached input$0.50
Output$25.00
Context
Context length1,000,000
Max output tokens128,000
Knowledge cutoff-
Performance
Throughput54 tok/s
Latency22.3s
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)62.5Claude 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)60.9
