Decision support

Beam 1.0 501B A23B vs GLM 5.3 FlashX Legal

Compare canonical objects directly. The useful dimensions change with the object type, so model and hardware comparisons stay separate.

Models Hardware

Beam 1.0 501B A23B

Reflection AI

Sources:models.devOpenRouter

GLM 5.3 FlashX Legal

Z.ai

Sources:OpenRouter

Benchmark results

Arena Text
Arena rating · Higher is better
- Beam 1.0 501B A23B
  1435
  Arena #108CI 1425 to 1444
- GLM 5.3 FlashX Legal
  Not reported
Runs and sources
Beam 1.0 501B A23B
default143595% CI 1425 to 1444 · 4,006 votes
GLM 5.3 FlashX Legal
Not reported
Source:Arena Text leaderboard, 2026-11-09
Arena WebDev
Arena rating · Higher is better
- Beam 1.0 501B A23B
  1437
  Arena #89CI 1423 to 1450
- GLM 5.3 FlashX Legal
  Not reported
Runs and sources
Beam 1.0 501B A23B
default143795% CI 1423 to 1450 · 2,515 votes
GLM 5.3 FlashX Legal
Not reported
Source:Arena WebDev leaderboard, 2026-11-10
Agent Arena
IPS score · Higher is better
- Beam 1.0 501B A23B
  -0.059
  Arena #45CI -0.085 to -0.033
- GLM 5.3 FlashX Legal
  Not reported
Runs and sources
Beam 1.0 501B A23B
default-0.05995% CI -0.085 to -0.033 · 696,272 observations
GLM 5.3 FlashX Legal
Not reported
Source:Agent Arena leaderboard, 2026-11-11

Each model's best published result is shown; "Not reported" means no matched evaluation, not a score of zero. Arena and DeepSWE ranks are the leaderboards' own; other ranks are among catalogue models with a score. Results from different harnesses or settings are not directly comparable.

Arena ratings: Arena (lmarena-ai/leaderboard-dataset), licensed CC BY 4.0. Ratings come from pairwise human votes and are only comparable within one leaderboard; the interval is Arena's 95% confidence interval. Model names are matched to the Vertical Tabs catalog.

Model specifications

Release date

October 16, 2026

November 2, 2026

Context window

Native context

—

Max output tokens

943,718

131,072

Knowledge cutoff

2026-06-30

—

Open weights

Unknown

Parameter count

501B

—

API pricing · USD per 1M tokens

Input

$0.30

$0.37

Output

$1.00

$1.25

Cached input

$0.04

$0.075

Cache write

—

Capabilities and modalities

Input modalities

text

text, image, video

Output modalities

text

Tool calling

Supported

Reasoning option

Supported

Supported options

frequency_penalty, include_reasoning, logit_bias, logprobs, max_tokens, min_p, presence_penalty, reasoning, reasoning_effort, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_logprobs, top_p

include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, structured_outputs, temperature, tool_choice, tools, top_k, top_p

Capabilities

—

Architecture and availability

Architecture

—

Model families

—

Tokenizer

Other

Instruction format

—

License

Apache-2.0

—

Providers

Provider endpoints

Ollama variants

Metadata source

ai-research

openrouter

A dash means the field is not reported. Provider-specific performance and pricing may differ.

Benchmark results

Arena Text

Arena WebDev

Agent Arena

Model specifications

API pricing · USD per 1M tokens

Capabilities and modalities

Architecture and availability