Beam 1.0 vs o3-pro
Comparing Beam 1.0 and o3-pro across benchmarks, pricing, and capabilities.
Reflection AI · OpenAI · Updated for 2026
Which is better?
Beam 1.0 and o3-pro trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, Beam 1.0 is roughly 58.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Beam 1.0 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Beam 1.0
- cost matters — it's about 58.3x cheaper per token
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Oct 2026
- you need open weights you can self-host or fine-tune
Choose o3-pro
- you want predictable pricing at $20.00/M input and $80.00/M output
At a glance
The differences that matter most.
Individual benchmarks
22 reported for Beam 1.0 · 0 for o3-pro
Beam 1.0 and o3-prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Beam 1.0 ($0.40/1M tokens) is 50.0x cheaper than o3-pro ($20.00/1M tokens).
For output processing, Beam 1.0 ($1.20/1M tokens) is 66.7x cheaper than o3-pro ($80.00/1M tokens).
In conclusion, o3-pro is more expensive than Beam 1.0.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Beam 1.0 accepts 1,048,576 input tokens compared to o3-pro's 200,000 tokens. Beam 1.0 can generate longer responses up to 131,072 tokens, while o3-pro is limited to 100,000 tokens.
Input capabilities
Documented input modalities across available providers
o3-pro supports multimodal inputs, whereas Beam 1.0 does not.
o3-pro can handle both text and other forms of data like images, making it suitable for multimodal applications.
Beam 1.0
o3-pro
License
Usage and distribution terms
Beam 1.0 is licensed under Apache 2.0, while o3-pro uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Beam 1.0 was released on 2026-10-16, while o3-pro was released on 2025-06-10.
Beam 1.0 is 16 months newer than o3-pro.
Oct 16, 2026
4 days ago
1.4yr newerJun 10, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
Beam 1.0 has a knowledge cutoff of 2026-06-30, while o3-pro has a cutoff of 2024-05-31.
Beam 1.0 has more recent training data (up to 2026-06-30), making it potentially better informed about events through that date compared to o3-pro (2024-05-31).
Jun 2026
2.1 yr newerMay 2024
Provider Availability
Beam 1.0 is available from Together, Reflection AI. o3-pro is available from OpenAI.
Beam 1.0
o3-pro
Outputs Comparison
Judge for yourself.
Run your own prompts against Beam 1.0 and o3-pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Beam 1.0 vs o3-pro.