Claude Opus 5.5 is 73.3% cheaper for input tokens ($4.00 vs. $15.00 per 1M tokens) and $20.00 vs. $60.00 for output tokens (3.8x cost advantage). In terms of operational performance, Claude Opus 5.5 delivers lower response latency at 680ms TTFT (1920ms faster than o1) with 95 vs. 48 tok/s throughput. Claude Opus 5.5 leads coding evaluations at 89.9% SWE-bench Verified vs. 48.9% for o1 and 93.2% vs. 78.0% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.
Zero-Shot RAG Verified
Verified Performance & Unit Economics Delta (12 Dimensions)
Daily synchronized metrics across token pricing, prompt cache economics, latency, throughput, and 5 capability benchmarks.
Metric / Dimension
Claude Opus 5.5
o1
Net Delta / Advantage
Input Cost / 1M Tokens
$4.00
$15.00
Claude Opus 5.5 is 3.8x cheaper
Output Cost / 1M Tokens
$20.00
$60.00
Claude Opus 5.5 (66.7% lower)
Prompt Cache Read / 1M
$0.200
$7.500
Claude Opus 5.5 is 37.5x cheaper
Prompt Cache Write / 1M
$5.00
$15.00
Claude Opus 5.5 is 3.0x cheaper
Context Window (Max Output)
1,024k (128k out)
205k (100k out)
Claude Opus 5.5 (5.0x larger context)
Avg TTFT Response Latency
680ms
2600ms
Claude Opus 5.5 (1920ms faster)
Generation Speed (Throughput)
95 tok/s
48 tok/s
Claude Opus 5.5 (+47 tok/s faster)
SWE-bench Verified (Coding)
89.9%
48.9%
Claude Opus 5.5 (+41.0% lead)
GPQA Diamond (PhD STEM)
93.2%
78%
Claude Opus 5.5 (+15.2% lead)
MMLU-Pro (Multi-Discipline)
92.1%
83.3%
Claude Opus 5.5 (+8.8% lead)
MATH-500 (Quantitative Logic)
98%
96.4%
Claude Opus 5.5 (+1.6% lead)
Inference Value Score (IVR)
57.8 / 100
37.2 / 100
Claude Opus 5.5 (+20.6 pts)
Interactive Monthly Token Economics & ROI Forecaster
Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.
Choose Claude Opus 5.5 (Anthropic) for top-ranked frontier intelligence leader for autonomous multi-step agentic coding, repository-scale migrations, and complex scientific reasoning at a 40% lower workload cost than Opus 5 — offering a 1,024k context window, 680ms TTFT, and $4.00/1M input pricing ($0.200/1M cached reads).
Claude Opus 5.5 is cheaper at $4.00/1M input tokens ($20.00/1M output) compared to $15.00/1M input ($60.00/1M output) for o1.
Which model has lower TTFT latency and higher tok/s throughput: Claude Opus 5.5 or o1?
Claude Opus 5.5 delivers faster first-token latency at 680ms TTFT (95 tok/s throughput) compared to 2600ms TTFT (48 tok/s) for o1.
How do Claude Opus 5.5 and o1 compare on SWE-bench coding and GPQA Diamond reasoning?
On SWE-bench Verified software engineering, Claude Opus 5.5 scores 89.9% versus 48.9% for o1. On GPQA Diamond graduate-level STEM reasoning, Claude Opus 5.5 scores 93.2% versus 78% for o1 (and 98% vs 96.4% on MATH-500).
When should you choose Claude Opus 5.5?
Choose Claude Opus 5.5 (Anthropic) for top-ranked frontier intelligence leader for autonomous multi-step agentic coding, repository-scale migrations, and complex scientific reasoning at a 40% lower workload cost than Opus 5 — offering a 1,024k context window, 680ms TTFT, and $4.00/1M input pricing ($0.200/1M cached reads).
When should you choose o1?
Choose o1 (OpenAI) for legacy reasoning benchmarks, scientific literature review, and complex mathematical proofs — offering a 204k context window, 2600ms TTFT, and $15.00/1M input pricing ($7.500/1M cached reads).
