Beam 1.0 501B A23B
Beam 1.0 501B A23B is a Reflection open-weights reasoning model, released 5 Oct 2026. It is not yet ranked: 2 independent results so far, and the index needs at least five across two categories. At $1.50 per million tokens blended it is pricier than most ranked models. Output speed of 137 tokens per second puts it faster than most, with a first token in 0.9 s. Last measured 16 Oct 2026.
- Blended price
- $1.50/M
- $1.00 in · $3.00 out
- Output speed
- 137 tok/s
- OpenRouter traffic, 7-day median; not yet measured by Artificial Analysis
- First answer
- 0.88 s
- Context
- 1.0M
- Full answer
- –
- Cost per run
- –
- Released
- 5 Oct 2026
- Coding47
- Agents & tools41
Benchmark results
See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.
Coding
| Benchmark | not stated | Source |
|---|---|---|
| Arena WebDev | 1438#74 | Arena (LMArena) |
Agents & tools
| Benchmark | not stated | Source |
|---|---|---|
| Arena Agent | -3.7#37 | Arena (LMArena) |
Where to run it
Every provider serving this model through OpenRouter, with throughput and first-token latency measured on live traffic over the last 30 minutes and each provider’s own price. Purple marks the best in each column.
| Provider | Speed | First token | Input $/M | Output $/M | Context | Quantisation |
|---|---|---|---|---|---|---|
| Together | 180 tok/s | 0.21 s | $0.400 | $1.20 | 1.0M | – |
| Nebius Token Factory | 145 tok/s | 0.98 s | $0.250 | $1.00 | 1.0M | fp8 |
What a task costs
Estimates from list price, output speed and time to first answer for the best configuration. “With caching” assumes three-quarters of the input is served from the prompt cache at $0.040 per 1M. Reasoning tokens are not modelled.
| Workload | Tokens in / out | Cost | With caching | Time |
|---|---|---|---|---|
| Chat reply | 400 / 300 | $0.0013 | $0.0010 | 3.1 s |
| Summarise a 30-page report | 12,000 / 600 | $0.014 | $0.0052 | 5.3 s |
| Code edit | 6,000 / 1,500 | $0.011 | $0.0062 | 11.9 s |
| Agentic coding session | 60,000 / 4,000 | $0.072 | $0.029 | 30.2 s |
| Structured extraction | 2,000 / 200 | $0.0026 | $0.0012 | 2.3 s |
More from Reflection
See also
Data as of 18 Oct 2026. Compare with another model.
Cite as: BenchLeader, “Beam 1.0 501B A23B: benchmarks, pricing, speed and rank”, https://www.benchleader.com/models/beam-1-0-501b-a23b, data as of 18 Oct 2026.