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Gemini 3 Flash vs Gemini 4 Carbon

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 36.3.

Google · Google · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 36.3, ranking #2 overall.

In the 1 individual benchmarks reported for both models, Gemini 4 Carbon wins 1; this is a narrower head-to-head signal than the composite indexes.

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

Choose Gemini 3 Flash

  • you want predictable pricing at $0.50/M input and $3.00/M output

Choose Gemini 4 Carbon

  • overall performance matters — it scores 59.0 and ranks #2 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
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Gemini 3 Flash
Google
Gemini 4 Carbon
Google
Core performance indexes
LLM Stats Score
36.3
#98
59.0
#2
Reasoning
37.1
#88
54.9
#5
Coding
22.1
#104
48.1
#3
Agents
17.6
#98
46.0
#2
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$0.50 / M
— / M
Output price
$3.00 / M
— / M
Context window
1,000,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Gemini 3 Flash
Gemini 4 Carbon
Vision
25.6#66
36.0#12
Tool use
15.6#109
35.8#3
Multimodal
26.4#55
38.0#6
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

24 reported for Gemini 3 Flash · 16 for Gemini 4 Carbon

1 shared

Gemini 3 Flash outperforms in 0 benchmarks, while Gemini 4 Carbon is better at 0 benchmarks.

Both models are evenly matched across the benchmarks.

Thu Oct 29 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Gemini 3 Flash specifies input context (1,000,000 tokens). Only Gemini 3 Flash specifies output context (65,536 tokens).

Google
Gemini 3 Flash
Input1,000,000 tokens
Output65,536 tokens
Google
Gemini 4 Carbon
Input- tokens
Output- tokens
Thu Oct 29 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 3 Flash and Gemini 4 Carbon support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 3 Flash

Text
Images
Audio
Video

Gemini 4 Carbon

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 3 Flash

Proprietary

Closed source

Gemini 4 Carbon

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3 Flash was released on 2025-12-17, while Gemini 4 Carbon was released on 2026-10-28.

Gemini 4 Carbon is 11 months newer than Gemini 3 Flash.

Gemini 3 Flash

Dec 17, 2025

10 months ago

Gemini 4 Carbon

Oct 28, 2026

1 days ago

10mo newer

Knowledge Cutoff

When training data ends

Gemini 3 Flash has a documented knowledge cutoff of 2025-01-31, while Gemini 4 Carbon's cutoff date is not specified.

We can confirm Gemini 3 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without Gemini 4 Carbon's cutoff date.

Gemini 3 Flash

Jan 2025

Gemini 4 Carbon

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Gemini 3 Flash and Gemini 4 Carbon side-by-side, then vote on the output you prefer.

Gemini 3 Flash
✓ Preferred
Gemini 4 Carbon
Open in Playground

FAQ

Common questions about Gemini 3 Flash vs Gemini 4 Carbon.

Which is better, Gemini 3 Flash or Gemini 4 Carbon?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 36.3. Gemini 3 Flash is made by Google and Gemini 4 Carbon is made by Google. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3 Flash compare to Gemini 4 Carbon in benchmarks?

Gemini 3 Flash scores Vending-Bench 2: 100.0%, AIME 2025: 99.7%, Global PIQA: 92.8%, MMMLU: 91.8%, GPQA: 90.4%. 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%.

What are the context window sizes for Gemini 3 Flash and Gemini 4 Carbon?

Gemini 3 Flash supports 1.0M tokens and Gemini 4 Carbon 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 3 Flash and Gemini 4 Carbon?

Key differences include LLM Stats Score (36.3 vs 59.0). See the full comparison above for benchmark-by-benchmark results.

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