LOADING DATASHEET
GROUNDED IN REAL HUMAN CONVERSATIONSYOUR BENCH
Beam 1.0 501B A23B
◆ OPEN
by Reflection
OPEN WEIGHTSHOSTEDAPILONG CONTEXTPAID
RANKED #74 OF 318 ASSISTANTS · OVERALL #98 OF 494 RANKED · VIBE SCORE 6.1 · 3,721 VOICES ·
COPY BADGE pastes a README snippet with the rank SVG.
Beam 1.0 is Reflection's open-weight reasoning model for coding and long-horizon agentic workflows. It uses a sparse mixture-of-experts architecture with 501B total and 23B active parameters per token, and a...
HAPPY8.3
19 mentions
SAD6.7
25 mentions
VIBE TRAJECTORY
26 weeks · 3,780 voices in this window
TOO QUIET
Not enough weekly voices to call a trend yet.
HOW TO USE IT
Open weights. You can use a hosted service, or download it and run it yourself, free.
RUN IT ON YOUR OWN MACHINE
Open weights: download Beam 1.0 501B A23B once and it's yours. No subscription, no rate limits, works offline.
501B total parameters (23B active MoE), a 4-bit quant is around 280-300 GB while BF16 is around 1 TB
- BARE MINIMUM
Dual Mac Studio M2 Ultra (cluster of two 192GB unified memor
384 GB UNIFIED MEMORY
~$13,500 USEDToo large for consumer hardware. Cluster runs Q4 MoE weights distributed via llama.cpp or MLX at ~8 tok/s, 16k context
- SWEET SPOT
Custom multi-GPU workstation (4x NVIDIA RTX 6000 Ada Generat
192 GB VRAM PLUS 512 GB HIGH-SPEED DDR5
~$32,000 NEWNVFP4/Q4 quantization with partial system RAM offloading, ~12 tok/s, 32k context
- FULL POWER
Dedicated enterprise node (8x NVIDIA H100 80GB SXM)
640 GB VRAM
~$240,000 NEWFP8 / full BF16 tensor parallel inference, ~35 tok/s, full 128k context
LEARN HOW TO SET IT UP
WILL MY BOX RUN BEAM 1.0 501B A23B?
The three cards above are researched picks. Search the machine you actually have — we only say yes if it should reply at a usable speed, not just load the weights and crawl.
HARDWARE PICKS & PRICES ARE RESEARCHED FROM THE LIVE WEB AND REFRESHED AUTOMATICALLY. TREAT THEM AS BALLPARK, NOT GOSPEL.
WHAT CAN YOU ACTUALLY DO WITH IT?
Everyday jobs on each of those rigs: how long Beam 1.0 501B A23B takes, and how good the crowd says it is at that kind of work.
| THE JOB | BARE MINIMUMDual Mac Studio M2 Ultra (cluster of two 192GB unified memor | SWEET SPOTCustom multi-GPU workstation (4x NVIDIA RTX 6000 Ada Generat | FULL POWERDedicated enterprise node (8x NVIDIA H100 80GB SXM) |
|---|---|---|---|
| Write an emaila paragraph or two, drafted from a one-line brief | ~63 S★★★★★ | ~42 S★★★★★ | ~14 S★★★★★ |
| Summarize a documenta long report boiled down to the points that matter | ~3.1 MIN★★★★★ | ~2.1 MIN★★★★★ | ~43 S★★★★★ |
| Build a websitea small landing page, markup and styles together | ~17 MIN★★★★★ | ~11 MIN★★★★★ | ~3.8 MIN★★★★★ |
| Build a backendan API with routes, storage and tests | ~52 MIN★★★★★ | ~35 MIN★★★★★ | ~12 MIN★★★★★ |
| Build a gamea playable browser game in one file | ~31 MIN★★★★★ | ~21 MIN★★★★★ | ~7.1 MIN★★★★★ |
STARS ARE THE COMMUNITY SCORE FOR THAT KIND OF WORK, DOCKED FOR HOW SQUASHED THE WEIGHTS GET AT EACH TIER. TIMES ARE COMPUTED FROM RESEARCHED SPEEDS. BALLPARK, NOT GOSPEL.
WHAT THE INTERNET SAYS
People are mostly frustrated with Beam 1.0 501B A23B right now. Biggest praise: help with code. Biggest gripe: saying no too much.
288 POSTS · 3433 COMMENTS · REDDIT · HACKER NEWS · GITHUB · BLUESKY · BLOG
PEOPLE LOVE
- Popular for coding help (2 mentions)
PEOPLE COMPLAIN ABOUT MORE
- Sometimes makes things up (4 mentions)
- Outages, errors, or limits get in the way (3 mentions)
- Refuses or lectures more than people like (3 mentions)
- People find it expensive (2 mentions)
TOPIC BY TOPIC
- Getting facts rightA SORE SPOT
2 thumbs up · 4 thumbs down
- PriceMIXED FEELINGS
2 thumbs up · 2 thumbs down
- Working when you need itA SORE SPOT
1 thumbs up · 3 thumbs down
- Help with codeMOSTLY POSITIVE
2 thumbs up · 1 thumbs down
- Saying no too muchA SORE SPOT
0 thumbs up · 3 thumbs down
LOOKING FOR AN ALTERNATIVE? SEE ALL
Other models the crowd has fully reviewed, starting with text models like this one.
Qwen3.8 27B
Muse Spark 1.3 Contributor
DeepSeek V4 Flash> SOURCES (12)
- BLOG · 2026-10-17 · 32 UPVOTES[AINews] High Taste Testers Ep. 1
We are piloting a new show on Latent Space: High Taste Testers, a variant of our food show where we pull you in to a typical lunch conversation in San Francisco. All your favorite talking points, starting with Dev Day and going into the latest models and…
- REDDIT · 2026-10-16 · 20 UPVOTES[Research] 2,788 tokens/s on a single RTX 5090 with a diffusion LLM — Introducing ORL (fully open source) [R]
[Research] 2,788 tokens/s on a single RTX 5090 with a diffusion LLM — Introducing ORL (fully open source) [R]
- REDDIT · 2026-10-16 · 19 UPVOTESComment in r/MachineLearning
Comment in r/MachineLearning
- REDDIT · 2026-10-16 · 16 UPVOTESComment in r/MachineLearning
Comment in r/MachineLearning
- REDDIT · 2026-10-16 · 16 UPVOTESComment in r/artificial
Comment in r/artificial
- REDDIT · 2026-10-16 · 14 UPVOTESReflection Beam 1.0 510B A23B is kind of brilliant for RP
Reflection Beam 1.0 510B A23B is kind of brilliant for RP
- REDDIT · 2026-10-17 · 8 UPVOTESComment in r/MachineLearning
Comment in r/MachineLearning
- REDDIT · 2026-10-16 · 7 UPVOTESIs tesla roadster demo really that impressive? or other companies not dumb enough to do such a thing?
Is tesla roadster demo really that impressive? or other companies not dumb enough to do such a thing?
- GITHUB · 2026-10-16 · 7 UPVOTES[Model] Add Reflection Beam
[Model] Add Reflection Beam
- HACKER NEWS · 2026-10-16 · 6 UPVOTESBeam 1.0
Beam 1.0
- REDDIT · 2026-10-16 · 6 UPVOTESComment in r/MachineLearning
Comment in r/MachineLearning
- REDDIT · 2026-10-17 · 5 UPVOTESComment in r/artificial
Comment in r/artificial