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Gemini 3.8 Flash

ModelActive
by Google · family “gemini-flash”

Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning. (description from the OpenRouter listing)

in: textin: imagein: videoin: filein: audioout: textReasoningTool useStructured output
Epoch Capabilities Index
157.1 #13 of 268
90% CI 154.9 – 161.3
Listing ↗
Released
2 Sep 2026
Context window
1.05M tokens
Max output
66K tokens
Input $ / 1M tokens
$0.75
Output $ / 1M tokens
$3.75
Cached input $ / 1M
$0.075
Each benchmark shown separately with its own source

Benchmark results (11)

All benchmarks
BenchmarkDomainScorevs best recordedSettingRunSource
Furniture Assemblymultimodal31.7% ±5.9
38%
high10 Sep 2026Epoch ↗
FrontierSWEother19.6%
30%
high—External ↗
Mystery Game Puzzlesgames47.0% ±5.0
56%
high2 Sep 2026Epoch ↗
Surface Evolver Benchscience76.9%
81%
high—External ↗
FrontierMath-Tiers-1-3-v2-Privatemath68.4% ±2.8
73%
high2 Sep 2026Epoch ↗
FrontierMath-Tier-4-v2-Privatemath22.0% ±6.5
22%
high2 Sep 2026Epoch ↗
DeepSWEcoding73.8%
100%
high—External ↗
Chess Puzzlesgames61.0% ±4.9
85%
high2 Sep 2026Epoch ↗
SimpleQA Verifiedknowledge69.7% ±1.5
92%
high2 Sep 2026Epoch ↗
OTIS Mock AIME 2024-2025math98.9% ±0.9
99%
high2 Sep 2026Epoch ↗
GPQA diamondscience95.4% ±1.4
100%
high2 Sep 2026Epoch ↗

Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.

API list price over time

Price history

$ per 1M tokens

Unchanged since first recorded on 27 Sep 2026 (OpenRouter listing); re-read on every data refresh, most recently 40m ago. Steps show when the price changed.

Events