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Beam 1.0 vs Devstral Medium

Beam 1.0 leads the LLM Stats Score 44.6 to 13.3. Beam 1.0 is 1.3x cheaper per token.

Reflection AI · Mistral AI · Updated for 2026

Which is better?

Beam 1.0 leads the overall LLM Stats Score 44.6 to 13.3, ranking #46 overall.

In the 1 individual benchmarks reported for both models, Beam 1.0 wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, Beam 1.0 is roughly 1.3x 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

  • overall performance matters — it scores 44.6 and ranks #46 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • cost matters — it's about 1.3x 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 Devstral Medium

  • you want predictable pricing at $0.40/M input and $2.00/M output

At a glance

The differences that matter most.

Core performance indexes
44.6
#46
13.3
#269
45.5
#37
13.2
#260
33.7
#39
5.1
#223
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$0.40 / M
$0.40 / M
Output price
$1.20 / M
$2.00 / M
Context window
1,048,576
128,000

Individual benchmarks

22 reported for Beam 1.0 · 1 for Devstral Medium

1 shared

Beam 1.0 outperforms in 1 benchmarks (SWE-Bench Verified), while Devstral Medium 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

Beam 1.0 costs less

For input processing, Beam 1.0 ($0.40/1M tokens) costs the same as Devstral Medium ($0.40/1M tokens).

For output processing, Beam 1.0 ($1.20/1M tokens) is 1.7x cheaper than Devstral Medium ($2.00/1M tokens).

In conclusion, Devstral Medium is more expensive than Beam 1.0.*

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

Lowest available price from all providers
Fri Oct 23 2026 • llm-stats.com
Reflection AI
Beam 1.0
Input tokens$0.40
Output tokens$1.20
Best providerTogether
Mistral AI
Devstral Medium
Input tokens$0.40
Output tokens$2.00
Best providerMistral
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Beam 1.0 accepts 1,048,576 input tokens compared to Devstral Medium's 128,000 tokens. Beam 1.0 can generate longer responses up to 131,072 tokens, while Devstral Medium is limited to 128,000 tokens.

Reflection AI
Beam 1.0
Input1,048,576 tokens
Output131,072 tokens
Mistral AI
Devstral Medium
Input128,000 tokens
Output128,000 tokens
Fri Oct 23 2026 • llm-stats.com

License

Usage and distribution terms

Beam 1.0 is licensed under Apache 2.0, while Devstral Medium uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

Beam 1.0

Apache 2.0

Open weights

Devstral Medium

Proprietary

Closed source

Release Timeline

When each model was launched

Beam 1.0 was released on 2026-10-16, while Devstral Medium was released on 2025-07-10.

Beam 1.0 is 15 months newer than Devstral Medium.

Beam 1.0

Oct 16, 2026

3 days ago

1.3yr newer
Devstral Medium

Jul 10, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

Beam 1.0 has a documented knowledge cutoff of 2026-06-30, while Devstral Medium'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 Devstral Medium's cutoff date.

Beam 1.0

Jun 2026

Devstral Medium

—

Provider Availability

Beam 1.0 is available from Together, Reflection AI. Devstral Medium is available from Mistral AI.

Beam 1.0

together logo
Together
Input Price:Input: $0.40/1MOutput Price:Output: $1.20/1M
reflection logo
Unknown Organization

Devstral Medium

mistral logo
Mistral
Input Price:Input: $0.40/1MOutput Price:Output: $2.00/1M
* 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 Devstral Medium side-by-side, then vote on the output you prefer.

Beam 1.0
✓ Preferred
Devstral Medium
Open in Playground

FAQ

Common questions about Beam 1.0 vs Devstral Medium.

Which is better, Beam 1.0 or Devstral Medium?

Beam 1.0 leads the LLM Stats Score 44.6 to 13.3. Beam 1.0 is made by Reflection AI and Devstral Medium is made by Mistral AI. 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 Devstral Medium 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%. Devstral Medium scores SWE-Bench Verified: 61.6%.

Is Beam 1.0 cheaper than Devstral Medium?

Both models cost $0.40 per million input tokens.

What are the context window sizes for Beam 1.0 and Devstral Medium?

Beam 1.0 supports 1.0M tokens and Devstral Medium supports 128K 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 Devstral Medium?

Key differences include LLM Stats Score (44.6 vs 13.3), context window (1.0M vs 128K), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Beam 1.0 and Devstral Medium?

Beam 1.0 is developed by Reflection AI and Devstral Medium is developed by Mistral AI.