Gemini 3.8 Flash vs Laguna S 2.1: Specs & Benchmark Comparison

CharacteristicGemini 3.8 FlashLaguna S 2.1
CompanyGooglePoolside
Release DateSeptember 2, 2026July 21, 2026
Parameters118B
MultimodalYesNo
Context (input)1.0M1.0M
Context (output)66K
Input Price / 1M$0.75$0.10
Output Price / 1M$3.75$0.20
Average Score0.60.6
Benchmarks
DeepSWE 1.10.70.4
Terminal-Bench 2.10.90.7

Visual Benchmark Comparison

Gemini 3.8 Flash
Laguna S 2.1
DeepSWE 1.10.7 vs 0.4
0.7
0.4
Terminal-Bench 2.10.9 vs 0.7
0.9
0.7

Verdict

Both models show equal results — the choice depends on your specific use case.

Overall Performance

Both models show comparable average scores: Gemini 3.8 Flash — 0.6, Laguna S 2.1 — 0.6.

API Cost

Laguna S 2.1 is 15.0x cheaper: input $0.10/1M vs $0.75/1M tokens.

Context Window

Same context size: 1M tokens.

Recency

Gemini 3.8 Flash is newer: released 9/2/2026 vs 7/21/2026.

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Frequently Asked Questions

Which is better for coding — Gemini 3.8 Flash or Laguna S 2.1?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Gemini 3.8 Flash or Laguna S 2.1?
Laguna S 2.1 is cheaper for input: $0.10 per 1M tokens vs $0.75.
Which has a larger context window — Gemini 3.8 Flash or Laguna S 2.1?
Gemini 3.8 Flash supports a larger context: 1,048,576 tokens vs 1,048,576.

The Gemini 3.8 Flash and Laguna S 2.1 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3.8 Flash or Laguna S 2.1 page. See also the complete list of AI model comparisons.