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Gemini 4 Carbon vs SWE-2 Flash

Gemini 4 Carbon leads the LLM Stats Score 57.2 to 43.8.

Google · Cognition · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 57.2 to 43.8, ranking #4 overall.

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

Choose Gemini 4 Carbon

  • overall performance matters — it scores 57.2 and ranks #4 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes

Choose SWE-2 Flash

  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

Gemini 4 Carbon
Google
SWE-2 Flash
Cognition
Core performance indexes
LLM Stats Score
57.2
#4
43.8
#59
Reasoning
53.4
#8
42.6
#61
Coding
45.6
#4
33.0
#44
Agents
43.6
#4
30.1
#50
Cost, coverage & limits
Benchmark wins
—
—
Input price
$2.00 / M
— / M
Output price
$10.00 / M
— / M
Context window
1,048,576
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Gemini 4 Carbon
SWE-2 Flash
Tool use
34.2#5
23.0#58
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemini 4 Carbon · 7 for SWE-2 Flash

No common benchmarks found

Gemini 4 Carbon 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

Context Window

Maximum input and output token capacity

Only Gemini 4 Carbon specifies input context (1,048,576 tokens). Only Gemini 4 Carbon specifies output context (1,048,576 tokens).

Google
Gemini 4 Carbon
Input1,048,576 tokens
Output1,048,576 tokens
Cognition
SWE-2 Flash
Input- tokens
Output- tokens
Thu Nov 12 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Gemini 4 Carbon supports multimodal inputs, whereas SWE-2 Flash does not.

Gemini 4 Carbon can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 4 Carbon

Text
Images
Audio
Video

SWE-2 Flash

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 4 Carbon

Proprietary

Closed source

SWE-2 Flash

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 4 Carbon was released on 2026-10-28, while SWE-2 Flash was released on 2026-11-04.

SWE-2 Flash is 0 month newer than Gemini 4 Carbon.

Gemini 4 Carbon

Oct 28, 2026

2 weeks ago

SWE-2 Flash

Nov 4, 2026

1 weeks ago

1w 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 Gemini 4 Carbon and SWE-2 Flash side-by-side, then vote on the output you prefer.

Gemini 4 Carbon
✓ Preferred
SWE-2 Flash
Open in Playground

FAQ

Common questions about Gemini 4 Carbon vs SWE-2 Flash.

Which is better, Gemini 4 Carbon or SWE-2 Flash?

Gemini 4 Carbon leads the LLM Stats Score 57.2 to 43.8. Gemini 4 Carbon is made by Google 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 Gemini 4 Carbon compare to SWE-2 Flash in benchmarks?

Gemini 4 Carbon scores Gray Swan IPI Benchmark: 100.0%, Vending-Bench 2: 100.0%, Graphwalks BFS >128k: 96.2%, WebDev Arena: 88.4%, SEC-bench Pro: 88.2%. 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 context window sizes for Gemini 4 Carbon and SWE-2 Flash?

Gemini 4 Carbon supports 1.0M tokens and SWE-2 Flash supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 4 Carbon and SWE-2 Flash?

Key differences include LLM Stats Score (57.2 vs 43.8), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Carbon and SWE-2 Flash?

Gemini 4 Carbon is developed by Google and SWE-2 Flash is developed by Cognition.

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