Gemini 3.8 Flash
Googlefamily · Gemini 3.8ai.google.dev/gemini-api/docs/models/gemini-3.8-
Our most intelligent Flash model, engineered for long-horizon software engineering, autonomous agents, and complex enterprise workflows.
Updated 1 h ago · first seen 11 Sept 2026
model_01M293V7SGMT3E44NWTHC33FJ1
Overview
Identity
- Canonical model
- Yesidentity confidence: highOne row per real model release. Artifacts (checkpoints, quantisations, conversions) and folded evaluation variants point here.
- Official checkpoints
- None recorded — closed weightsofficial_checkpoints = hf_repo identifiers carried by the model itself; artifacts are separate entities pointing here through canonical_id.
- Artifacts
- None recordedSeparate entities (checkpoint · quantization · conversion · packaging) pointing to this model through canonical_id.
- Provider deployments
- 1
- API aliases
- gemini-3-8-flashgemini-3-8-flash-lowgemini-3-8-flash-mediumgemini-3.8-flashgoogle/gemini-3.8-flashIdentifiers under which providers and evaluators refer to this model.
- Folded evaluation variants
- 2Effort / thinking variants (…-high, …-non-reasoning) are result configurations of this model, not separate models. Their old URLs redirect here.
Openness
Closed / proprietary— weights not available; 7 dimensions unknown.
Weights are not available; the model is reachable only through an API or a product.
Weights
No
Inference code
—
Training code
—
Training data
—
Dataset
—
Commercial use
—
Redistribution
—
Derivatives
—
dimensions marked null are unknown, not false
Key facts
- Release date
Source:OpenRouter public model & pricing listingT2observed 11 h agomedium
- Status
Source:Google AI for Developers (Gemini API docs)T1observed 11 h agohigh
- Official page
Source:Google AI for Developers (Gemini API docs)T1observed 11 h agohigh
- API model id
Source:Google AI for Developers (Gemini API docs)T1observed 11 h agohigh
- Openrouter id
Source:OpenRouter public model & pricing listingT2observed 11 h agomedium
Architecture
- Tokenizer
Source:OpenRouter public model & pricing listingT2observed 11 h agomedium
Capabilities
Modalities
- Modalities
- audiodocumentimagetextvideo
- Input
- audiodocumentimagetextvideo
- Output
- text
Capabilities
Tool calling
Yes
Google AI for Developers (Gemini API docs) · T1
Structured output
Yes
Google AI for Developers (Gemini API docs) · T1
Reasoning
Yes
Google AI for Developers (Gemini API docs) · T1
Vision
Yes
Google AI for Developers (Gemini API docs) · T1
Audio
Yes
Google AI for Developers (Gemini API docs) · T1
Fine-tuning available
Unavailable
- Context window
Source:Google AI for Developers (Gemini API docs)T1observed 1 h agohigh
- Max output
Source:Google AI for Developers (Gemini API docs)T1observed 11 h agohigh
- Tokenizer
Source:OpenRouter public model & pricing listingT2observed 11 h agomedium
Benchmarks29
Compare with another model →Comparable same task and conditions · Partially comparable same task, conditions differ (effort, temperature, judge) · Not comparable different variant or metric
Current rows only, grouped by benchmark → canonical metric → comparability group (task configuration). Effort variants folded into this model appear as rows of the same group. 29 current rows in total. “vs leader” compares with the current leader of the benchmark's primary group only; other groups are not directly comparable. Comparability rules →
Providers & Pricing3
All offers in the price terminal →USD per 1M tokens as published by each provider; native units (per-request fees, flex/priority tiers) are kept verbatim. Rows are append-only — every price change is kept in the history below. Cost of a workload →
Price history
Output price · USD / 1M tokens 1 provider
- Google Gemini API
- Google Gemini API$3.75 → $1.8811 Sept 2026
- Google Gemini APIfirst observed $3.7511 Sept 2026
Input price · USD / 1M tokens 1 provider
- Google Gemini API
- Google Gemini API$0.75 → $0.37511 Sept 2026
- Google Gemini APIfirst observed $0.7511 Sept 2026
Versions & Artifacts0
Version history
Context window2 changes
11 Sept 2026→11 Sept 2026→12 Sept 2026current
Max outputfirst observation only
11 Sept 2026current
Opennessfirst observation only
11 Sept 2026current
Statusfirst observation only
11 Sept 2026current
Each hop is a claim: click a value for its source, tier and observation time. Nothing is overwritten — a new observation closes the previous claim.
Artifacts 0
No artifact (checkpoint, quantisation, conversion or packaging) points to this model yet.
Timeline3
Full timeline →Gemini 3.8 Flash: capabilities changed from ["Caching", "Code execution", "Computer use", "File searc… to ["caching", "code_execution", "computer_use", "file_searc…
CapabilitiesCaching, Code execution, Computer use, File search, Function calling, Grounding with Google Maps, Search grounding, Structured outputs, Thinking, URL context→caching, code_execution, computer_use, file_search, function_calling, maps_grounding, reasoning, search_grounding, structured_output, url_contextgoogleGemini 3.8 Flash: context length changed from 1000000 to 1048576
Context window1M tokens→1.05M tokensgoogleGemini 3.8 Flash: family changed from Gemini to Gemini 3.8
FamilyGemini→Gemini 3.8google
Change history27
Viewing AI Atlas as of 12 Sept 2026 — attributes exactly as the atlas knew them on that day; later corrections are not shown.
Back to today →Attributes as of 12 Sept 2026 30 claims in force
- Family
- Gemini 3.8
- Release date
- 2 Sept 2026
- Status
- active
- Openness
- proprietary
- Context window
- 1.05M tokens
- Max output
- 65.5K tokens
- Modalities
- audio, document, image, text, video
- Input modalities
- audio, document, image, text, video
- Output modalities
- text
- Tokenizer
- Gemini
- API model id
- gemini-3.8-flash
- Aa context window
- 1,000,000
- Aa openness
- proprietary
- Audio
- Yes
- Capabilities
- caching, code_execution, computer_use, file_search, function_calling, maps_grounding, reasoning, search_grounding, structured_output, url_context
- Capabilities raw
- Caching, Code execution, Computer use, File search, Function calling, Grounding with Google Maps, Search grounding, Structured outputs, Thinking, URL context
- File input
- Yes
- Latest update
- 2026-09
- Aa median output tokens per second
- 269.2
- Openrouter id
- google/gemini-3.8-flash
- Openrouter listed at
- 2 Sept 2026
- Reasoning
- Yes
- Structured output
- Yes
- Supported parameters
- include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_p
- Tool calling
- Yes
- Versions
- {"stable":["gemini-3.8-flash"]}
- Vision
- Yes
- Weights available
- No
Familyfamily1
Release daterelease_date1
Statusstatus1
Context windowcontext_length1
Max outputmax_output_tokens1
Modalitiesmodalities3conflicting claims
Input modalitiesmodalities_input3conflicting claims
Output modalitiesmodalities_output1
Tokenizertokenizer1
API model idapi_model_id1
Official pageofficial_url1
Audioaudio1
Capabilitiescapabilities1
Descriptiondescription1
File inputfile_input1
Latest updatelatest_update1
Openrouter idopenrouter_id1
Reasoningreasoning1
Structured outputstructured_output1
Supported parameterssupported_parameters1
Tool callingtool_calling1
Versionsversions1
Visionvision1
Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →
Provenance
Attributed facts
28
Source tiers
T1T219 / 9
Freshest observation
1 h ago
Conflicts
15 flagged
Source documents 6
Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.
Data quality (72/100) measures how well AI Atlas knows this entity — completeness, primary-source ratio, freshness, conflicts — never how good the model is. Methodology →