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Beam 1.0 vs Mistral Medium 3.5

Beam 1.0 leads the LLM Stats Score 44.6 to 26.4. Beam 1.0 is 5.0x 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 26.4, ranking #46 overall.

In the 4 individual benchmarks reported for both models, Beam 1.0 wins 4; this is a narrower head-to-head signal than the composite indexes.

On price, Beam 1.0 is roughly 5.0x 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 agents — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 4 of 4 exact shared results
  • cost matters — it's about 5.0x 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

Choose Mistral Medium 3.5

  • you want predictable pricing at $1.50/M input and $7.50/M output

At a glance

The differences that matter most.

Core performance indexes
44.6
#46
26.4
#171
45.5
#37
26.9
#162
33.7
#39
23.6
#92
28.8
#53
8.2
#155
Cost, coverage & limits
Benchmark wins
4 of 4
0 of 4
Input price
$0.40 / M
$1.50 / M
Output price
$1.20 / M
$7.50 / M
Context window
1,048,576
256,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Beam 1.0
Mistral Medium 3.5
35.1#45
18.9#185
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for Beam 1.0 · 11 for Mistral Medium 3.5

4 shared

Beam 1.0 outperforms in 4 benchmarks (BrowseComp, IFBench, SWE-Bench Verified, Tau3 Banking), while Mistral Medium 3.5 is better at 0 benchmarks.

Beam 1.0 significantly outperforms across most benchmarks.

Mon Oct 26 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) is 3.8x cheaper than Mistral Medium 3.5 ($1.50/1M tokens).

For output processing, Beam 1.0 ($1.20/1M tokens) is 6.3x cheaper than Mistral Medium 3.5 ($7.50/1M tokens).

In conclusion, Mistral Medium 3.5 is more expensive than Beam 1.0.*

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

Lowest available price from all providers
Mon Oct 26 2026 • llm-stats.com
Reflection AI
Beam 1.0
Input tokens$0.40
Output tokens$1.20
Best providerTogether
Mistral AI
Mistral Medium 3.5
Input tokens$1.50
Output tokens$7.50
Best providerMistral
Notice missing or incorrect data?

Model Size

Parameter count comparison

373.3B diff

Beam 1.0 has 373.3B more parameters than Mistral Medium 3.5, making it 291.6% larger.

Reflection AI
Beam 1.0
501.3Bparameters
Mistral AI
Mistral Medium 3.5
128.0Bparameters
501.3B
Beam 1.0
128.0B
Mistral Medium 3.5

Context Window

Maximum input and output token capacity

Beam 1.0 accepts 1,048,576 input tokens compared to Mistral Medium 3.5's 256,000 tokens. Mistral Medium 3.5 can generate longer responses up to 256,000 tokens, while Beam 1.0 is limited to 131,072 tokens.

Reflection AI
Beam 1.0
Input1,048,576 tokens
Output131,072 tokens
Mistral AI
Mistral Medium 3.5
Input256,000 tokens
Output256,000 tokens
Mon Oct 26 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Mistral Medium 3.5 supports multimodal inputs, whereas Beam 1.0 does not.

Mistral Medium 3.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Beam 1.0

Text
Images
Audio
Video

Mistral Medium 3.5

Text
Images
Audio
Video

License

Usage and distribution terms

Beam 1.0 is licensed under Apache 2.0, while Mistral Medium 3.5 uses Modified MIT 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

Mistral Medium 3.5

Modified MIT License

Open weights

Release Timeline

When each model was launched

Beam 1.0 was released on 2026-10-16, while Mistral Medium 3.5 was released on 2026-04-29.

Beam 1.0 is 6 months newer than Mistral Medium 3.5.

Beam 1.0

Oct 16, 2026

1 weeks ago

5mo newer
Mistral Medium 3.5

Apr 29, 2026

6 months ago

Knowledge Cutoff

When training data ends

Beam 1.0 has a documented knowledge cutoff of 2026-06-30, while Mistral Medium 3.5'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 Mistral Medium 3.5's cutoff date.

Beam 1.0

Jun 2026

Mistral Medium 3.5

—

Provider Availability

Beam 1.0 is available from Together, Reflection AI. Mistral Medium 3.5 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

Mistral Medium 3.5

mistral logo
Mistral
Input Price:Input: $1.50/1MOutput Price:Output: $7.50/1M
* 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 Mistral Medium 3.5 side-by-side, then vote on the output you prefer.

Beam 1.0
✓ Preferred
Mistral Medium 3.5
Open in Playground

FAQ

Common questions about Beam 1.0 vs Mistral Medium 3.5.

Which is better, Beam 1.0 or Mistral Medium 3.5?

Beam 1.0 leads the LLM Stats Score 44.6 to 26.4. Beam 1.0 is made by Reflection AI and Mistral Medium 3.5 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 Mistral Medium 3.5 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%. Mistral Medium 3.5 scores COLLIE: 95.8%, Tau3 Telecom: 91.4%, AIME 2025: 86.3%, SWE-Bench Verified: 77.6%, Tau3 Retail: 76.1%.

Is Beam 1.0 cheaper than Mistral Medium 3.5?

Beam 1.0 is 3.8x cheaper for input tokens. Beam 1.0 costs $0.40/M input and $1.20/M output via together. Mistral Medium 3.5 costs $1.50/M input and $7.50/M output via mistral.

What are the context window sizes for Beam 1.0 and Mistral Medium 3.5?

Beam 1.0 supports 1.0M tokens and Mistral Medium 3.5 supports 256K 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 Mistral Medium 3.5?

Key differences include LLM Stats Score (44.6 vs 26.4), context window (1.0M vs 256K), input pricing ($0.40 vs $1.50/M), multimodal support (no vs yes), licensing (Apache 2.0 vs Modified MIT License). See the full comparison above for benchmark-by-benchmark results.

Who makes Beam 1.0 and Mistral Medium 3.5?

Beam 1.0 is developed by Reflection AI and Mistral Medium 3.5 is developed by Mistral AI.