Claude 4.1 Opus (Reasoning)
Intelligence
42
#70/520
Coding
36.5
#78/426
Math
80.3
#66/265
Speed
38 tok/s
TTFT: 8.04s
Pricing
$15.00 / $75.00
per 1M tokens (in/out)
Claude 4.1 Opus (Reasoning) is Anthropic’s advanced AI model designed for complex reasoning tasks. It processes at a speed of 37.518 tokens per second and is priced at $15 per million input tokens, targeting professional users.
When to Use Claude 4.1 Opus (Reasoning)
✓ Best For
- Advanced reasoning and decision-making tasks.
- Mathematical problem solving.
- Coding assistance and debugging.
✗ Not Ideal For
- Basic conversational applications.
- High-speed real-time processing needs.
How Claude 4.1 Opus (Reasoning) Compares
Intelligence Index · Higher is better
AlibabaOpenAIAnthropicTencentMiniMax
Benchmark Profile
Coding Index
OpenAIAlibabaAnthropicTencent
Output Speed · tok/s
GoogleNous ResearchAnthropicKimi
Math Index
AlibabaZ AIAnthropicMotif TechnologiesMistral
Intelligence · Coding · Math
Intelligence
Coding
Math
All Benchmark Scores (13)
| Benchmark | Score | |
|---|---|---|
| Intelligence Index | 42 | |
| Coding Index | 36.5 | |
| Math Index | 80.3 | |
| MMLU-Pro | 88% | |
| GPQA | 809% | |
| LiveCodeBench | 654% | |
| HLE | 119% | |
| SciCode | 40.9% | |
| IFBench | 55.4% | |
| LCR | 66.3% | |
| TerminalBench Hard | 34.3% | |
| Tau2 | 71.4% | |
| AIME 2025 | 80.3% |
Data: Artificial Analysis · Updated: April 10, 2026
Frequently Asked Questions (15)
When was Claude 4.1 Opus (Reasoning) released?
Claude 4.1 Opus (Reasoning) was released on August 5, 2025.
Who created Claude 4.1 Opus (Reasoning)?
Claude 4.1 Opus (Reasoning) was created by Anthropic.
How intelligent is Claude 4.1 Opus (Reasoning)?
Claude 4.1 Opus (Reasoning) scores 42 (estimated) on the Artificial Analysis Intelligence Index, placing it well above average among other reasoning models in a similar price tier (median: 31).
How fast is Claude 4.1 Opus (Reasoning)?
Claude 4.1 Opus (Reasoning) generates output at 32.8 tokens per second (based on Anthropic's API), which is at the lower end compared to other reasoning models in a similar price tier (median: 67.8 t/s).
What is the latency of Claude 4.1 Opus (Reasoning)?
Claude 4.1 Opus (Reasoning) has a time to first token (TTFT) of 14.55s (based on Anthropic's API), which is at the higher end compared to other reasoning models in a similar price tier (median: 2.57s).
How much does Claude 4.1 Opus (Reasoning) cost?
Claude 4.1 Opus (Reasoning) costs $15.00 per 1M input tokens (at the higher end, median: $1.35) and $75.00 per 1M output tokens (at the higher end, median: $8.40), based on Anthropic's API.
What is Claude 4.1 Opus (Reasoning) API pricing?
Claude 4.1 Opus (Reasoning) costs $15.00 per 1M input tokens and $75.00 per 1M output tokens (based on Anthropic's API). For a blended rate (3:1 input to output ratio), this is $30.00 per 1M tokens. Pricing may vary by provider.
Is Claude 4.1 Opus (Reasoning) a reasoning model?
Yes, Claude 4.1 Opus (Reasoning) is a reasoning model. It uses extended thinking or chain-of-thought reasoning to work through complex problems before providing an answer.
What input modalities does Claude 4.1 Opus (Reasoning) support?
Claude 4.1 Opus (Reasoning) supports text and image input.
What output modalities does Claude 4.1 Opus (Reasoning) support?
Claude 4.1 Opus (Reasoning) supports text output.
Can Claude 4.1 Opus (Reasoning) process images?
Yes, Claude 4.1 Opus (Reasoning) supports image input and can analyze, describe, and answer questions about images.
Is Claude 4.1 Opus (Reasoning) multimodal?
Yes, Claude 4.1 Opus (Reasoning) is multimodal. It can process text and image input and generate text output.
What is the context window of Claude 4.1 Opus (Reasoning)?
Claude 4.1 Opus (Reasoning) has a context window of 200k tokens. This determines how much text and conversation history the model can process in a single request.
Is Claude 4.1 Opus (Reasoning) open source?
No, Claude 4.1 Opus (Reasoning) is proprietary. The model weights are not publicly available.
How many parameters does Claude 4.1 Opus (Reasoning) have?
Claude 4.1 Opus (Reasoning) is a proprietary model and Anthropic has not disclosed the model size or parameter count.
