Claude 3 Opus vs o1
o1 leads the LLM Stats Score 21.2 to 10.1. o1 is 1.1x cheaper per token.
Anthropic · OpenAI · Updated for 2026
Which is better?
o1 leads the overall LLM Stats Score 21.2 to 10.1, ranking #181 overall.
In the 6 individual benchmarks reported for both models, o1 wins 5; this is a narrower head-to-head signal than the composite indexes.
On price, o1 is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude 3 Opus
- you want predictable pricing at $15.00/M input and $75.00/M output
Choose o1
- overall performance matters — it scores 21.2 and ranks #181 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 5 of 6 exact shared results
- cost matters — it's about 1.1x cheaper per token
- you want the most recent training data — it shipped Dec 2024
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
11 reported for Claude 3 Opus · 19 for o1
Claude 3 Opus outperforms in 1 benchmarks (MGSM), while o1 is better at 5 benchmarks (GPQA, GSM8k, HumanEval, MATH, MMLU).
o1 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude 3 Opus ($15.00/1M tokens) costs the same as o1 ($15.00/1M tokens).
For output processing, Claude 3 Opus ($75.00/1M tokens) is 1.3x more expensive than o1 ($60.00/1M tokens).
In conclusion, Claude 3 Opus is more expensive than o1.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Both models have the same input context window of 200,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while o1 is limited to 100,000 tokens.
Input capabilities
Documented input modalities across available providers
Claude 3 Opus supports multimodal inputs, whereas o1 does not.
Claude 3 Opus can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude 3 Opus
o1
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude 3 Opus was released on 2024-02-29, while o1 was released on 2024-12-17.
o1 is 10 months newer than Claude 3 Opus.
Feb 29, 2024
2.5 years ago
Dec 17, 2024
1.7 years ago
9mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Claude 3 Opus is available from Anthropic, Bedrock, Google. o1 is available from Azure, OpenAI.
Claude 3 Opus
o1
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3 Opus and o1 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3 Opus vs o1.