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Codestral-22B vs SWE-2 Flash

SWE-2 Flash leads the LLM Stats Score 43.8 to -0.5.

Mistral AI · Cognition · Updated for 2026

Which is better?

SWE-2 Flash leads the overall LLM Stats Score 43.8 to -0.5, ranking #59 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Codestral-22B

  • you need open weights you can self-host or fine-tune

Choose SWE-2 Flash

  • overall performance matters — it scores 43.8 and ranks #59 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

Codestral-22B
Mistral AI
SWE-2 Flash
Cognition
Core performance indexes
LLM Stats Score
-0.5
#374
43.8
#59
Reasoning
-0.7
#365
42.6
#61
Coding
2.3
#268
33.0
#44
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Individual benchmarks

7 reported for Codestral-22B · 7 for SWE-2 Flash

No common benchmarks found

Codestral-22B and SWE-2 Flashdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

253.8B diff

SWE-2 Flash has 253.8B more parameters than Codestral-22B, making it 1143.2% larger.

Mistral AI
Codestral-22B
22.2Bparameters
Cognition
SWE-2 Flash
276.0Bparameters
22.2B
Codestral-22B
276.0B
SWE-2 Flash

License

Usage and distribution terms

Codestral-22B is licensed under MNPL-0.1, while SWE-2 Flash uses a proprietary license.

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

Codestral-22B

MNPL-0.1

Open weights

SWE-2 Flash

Proprietary

Closed source

Release Timeline

When each model was launched

Codestral-22B was released on 2024-05-29, while SWE-2 Flash was released on 2026-11-04.

SWE-2 Flash is 30 months newer than Codestral-22B.

Codestral-22B

May 29, 2024

2.5 years ago

SWE-2 Flash

Nov 4, 2026

1 weeks ago

2.4yr newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Codestral-22B and SWE-2 Flash side-by-side, then vote on the output you prefer.

Codestral-22B
✓ Preferred
SWE-2 Flash
Open in Playground

FAQ

Common questions about Codestral-22B vs SWE-2 Flash.

Which is better, Codestral-22B or SWE-2 Flash?

SWE-2 Flash leads the LLM Stats Score 43.8 to -0.5. Codestral-22B is made by Mistral AI and SWE-2 Flash is made by Cognition. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Codestral-22B compare to SWE-2 Flash in benchmarks?

Codestral-22B scores HumanEvalFIM-Average: 91.6%, HumanEval: 81.1%, MBPP: 78.2%, Spider: 63.5%, HumanEval-Average: 61.5%. SWE-2 Flash scores Terminal-Bench 2.1: 89.2%, DeepSWE 1.1: 60.1%, SWE Atlas - Codebase QnA: 50.0%, FrontierCode 1.1: 45.5%, ExploitBench: 34.8%.

What are the main differences between Codestral-22B and SWE-2 Flash?

Key differences include LLM Stats Score (-0.5 vs 43.8), licensing (MNPL-0.1 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Codestral-22B and SWE-2 Flash?

Codestral-22B is developed by Mistral AI and SWE-2 Flash is developed by Cognition.

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