Beam 1.0 vs GPT OSS 20B

Beam 1.0 leads the LLM Stats Score 44.6 to 17.5. GPT OSS 20B is 10.4x cheaper per token.

Reflection AI · OpenAI · Updated for 2026

Which is better?

Beam 1.0 leads the overall LLM Stats Score 44.6 to 17.5, ranking #46 overall.

In the 2 individual benchmarks reported for both models, Beam 1.0 wins 2; this is a narrower head-to-head signal than the composite indexes.

On price, GPT OSS 20B is roughly 10.4x 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

overall performance matters — it scores 44.6 and ranks #46 on LLM Stats
your work emphasizes reasoning — it leads those capability indexes
you value its reported benchmark strengths — it wins 2 of 2 exact shared results
you process long inputs — it offers a 1,048,576 token context window
you want the most recent training data — it shipped Oct 2026

Choose GPT OSS 20B

cost matters — it's about 10.4x cheaper per token

At a glance

The differences that matter most.

Better token value: GPT OSS 20B

Core performance indexes

LLM Stats Score

44.6

#46 · 22 evals

Best

17.5

#241 · 7 evals

Reasoning

45.5

#37 · 19 evals

Best

15.1

#249 · 5 evals

Cost, coverage & limits

Benchmark wins

2 of 2

Best

0 of 2

Input price

$0.40 / M

$0.03 / M

Best

Output price

$1.20 / M

$0.14 / M

Best

Context window

1,048,576

Best

131,072

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared

Index

Beam 1.0

GPT OSS 20B

Math

35.1#45 · 5 evals

16.9#210 · 3 evals

Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for Beam 1.0 · 7 for GPT OSS 20B

2 shared

Beam 1.0 outperforms in 2 benchmarks (GPQA, Humanity's Last Exam), while GPT OSS 20B is better at 0 benchmarks.

Beam 1.0 significantly outperforms across most benchmarks.

Fri Oct 23 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

GPT OSS 20B costs less

For input processing, Beam 1.0 ($0.40/1M tokens) is 13.3x more expensive than GPT OSS 20B ($0.03/1M tokens).

For output processing, Beam 1.0 ($1.20/1M tokens) is 8.6x more expensive than GPT OSS 20B ($0.14/1M tokens).

In conclusion, Beam 1.0 is more expensive than GPT OSS 20B.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Fri Oct 23 2026 • llm-stats.com

Beam 1.0

Input tokens$0.40

Output tokens$1.20

Best providerTogether

GPT OSS 20B

Input tokens$0.03

Output tokens$0.14

Best providerDeepinfra

Notice missing or incorrect data?

Model Size

Parameter count comparison

480.4B diff

Beam 1.0 has 480.4B more parameters than GPT OSS 20B, making it 2298.6% larger.

Beam 1.0

501.3Bparameters

GPT OSS 20B

20.9Bparameters

501.3B

Beam 1.0

20.9B

GPT OSS 20B

Context Window

Maximum input and output token capacity

Beam 1.0 accepts 1,048,576 input tokens compared to GPT OSS 20B's 131,072 tokens. Both models can generate responses up to 131,072 tokens.

Beam 1.0

Input1,048,576 tokens

Output131,072 tokens

GPT OSS 20B

Input131,072 tokens

Output131,072 tokens

Fri Oct 23 2026 • llm-stats.com

License

Usage and distribution terms

Both models are licensed under Apache 2.0.

Both models share the same licensing terms, providing consistent usage rights.

Beam 1.0

Apache 2.0

Open weights

GPT OSS 20B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Beam 1.0 was released on 2026-10-16, while GPT OSS 20B was released on 2025-08-05.

Beam 1.0 is 15 months newer than GPT OSS 20B.

Beam 1.0

Oct 16, 2026

3 days ago

1.2yr newer

GPT OSS 20B

Aug 5, 2025

1.2 years ago

Knowledge Cutoff

When training data ends

Beam 1.0 has a documented knowledge cutoff of 2026-06-30, while GPT OSS 20B's cutoff date is not specified.

We can confirm Beam 1.0's training data extends to 2026-06-30, but cannot make a direct comparison without GPT OSS 20B's cutoff date.

Beam 1.0

Jun 2026

GPT OSS 20B

—

Provider Availability

Beam 1.0 is available from Together, Reflection AI. GPT OSS 20B is available from DeepInfra, Novita, Fireworks, Groq, OpenAI.

Beam 1.0

Together

Input Price:Input: $0.40/1MOutput Price:Output: $1.20/1M

Unknown Organization

GPT OSS 20B

Deepinfra

Input Price:Input: $0.03/1MOutput Price:Output: $0.14/1M

Novita

Input Price:Input: $0.05/1MOutput Price:Output: $0.20/1M

Fireworks

Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

Groq

Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

OpenAI

Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Beam 1.0 and GPT OSS 20B side-by-side, then vote on the output you prefer.

Beam 1.0

✓ Preferred

GPT OSS 20B

Open in Playground

FAQ

Common questions about Beam 1.0 vs GPT OSS 20B.

Which is better, Beam 1.0 or GPT OSS 20B?

Beam 1.0 leads the LLM Stats Score 44.6 to 17.5. Beam 1.0 is made by Reflection AI and GPT OSS 20B is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Beam 1.0 compare to GPT OSS 20B in benchmarks?

Beam 1.0 scores AIME 2026: 97.7%, GPQA: 90.6%, LiveCodeBench: 88.3%, SWE-Bench Verified: 81.6%, MCP Atlas: 80.8%. GPT OSS 20B scores MMLU: 85.3%, CodeForces: 74.3%, GPQA: 71.5%, TAU-bench Retail: 54.8%, HealthBench: 42.5%.

Is Beam 1.0 cheaper than GPT OSS 20B?

GPT OSS 20B is 13.3x cheaper for input tokens. Beam 1.0 costs $0.40/M input and $1.20/M output via together. GPT OSS 20B costs $0.03/M input and $0.14/M output via deepinfra.

What are the context window sizes for Beam 1.0 and GPT OSS 20B?

Beam 1.0 supports 1.0M tokens and GPT OSS 20B supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Beam 1.0 and GPT OSS 20B?

Key differences include LLM Stats Score (44.6 vs 17.5), context window (1.0M vs 131K), input pricing ($0.40 vs $0.03/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Beam 1.0 and GPT OSS 20B?

Beam 1.0 is developed by Reflection AI and GPT OSS 20B is developed by OpenAI.

Beam 1.0 vs GPT OSS 20B