Home › Frontier and closed › google

Gemini 3.5 Flash google

Closed weights API only listed on OpenRouter 2026-05-19 (159d ago) · source Last verified 2026-10-25 06:51 UTC Docs ↗ OpenRouter ↗

Release timeline

Stages observed by the nightly radar: announced → API only → weights public → served by third parties. Each entry carries the source it was seen at.

  1. 2026-05-19 · API only source
    seeded from the earliest dated observation when first seen · observed 2026-10-07 20:20 UTC

Description

Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed. It is highly optimized for coding proficiency and parallel agentic execution...

via OpenRouter listing · observed 2026-10-24 21:26 UTC. The listing text is the provider's own description, not an assessment.

Where to run 3 providers · 8 endpoints

Hosted endpoints observed for Gemini 3.5 Flash, sorted by input price (USD per million tokens). Each row names its observer and date; prices change daily, so check the source before quoting. Cheapest observed input price: $0.75/M.

ProviderModel refContextQuant$/M in$/M outtok/sTTFTToolsStatusObserved
Google
openrouter
google/gemini-3.5-flash 1M unknown $0.75 $4.50 — — yes live 2026-10-24
Google AI Studio
openrouter
google/gemini-3.5-flash 1M unknown $0.75 $4.50 — — yes live 2026-10-24
DeepInfra
deepinfra
google/gemini-3.5-flash 977K — $1.50 $9.00 — — — live 2026-10-24
Google
openrouter
google/gemini-3.5-flash 1M unknown $1.50 $9.00 — — yes live 2026-10-24
Google AI Studio
openrouter
google/gemini-3.5-flash 1M unknown $1.50 $9.00 — — yes live 2026-10-24
Google
openrouter
google/gemini-3.5-flash 1M unknown $1.65 $9.90 — — yes live 2026-10-24
Google
openrouter
google/gemini-3.5-flash 1M unknown $2.70 $16.20 — — yes live 2026-10-24
Google AI Studio
openrouter
google/gemini-3.5-flash 1M unknown $2.70 $16.20 — — yes live 2026-10-24

Third-party providers observed: 1 (DeepInfra). Cache-read price $0.15/M (source, observed 2026-10-24).

Facts

Context length1,048,576 tokens (1M) · OpenRouter listing
Modalitiestext + image + video + file + audio → text
Max completion tokens65,536
Knowledge cutoff2025-01-01
Supported parametersinclude_reasoning, max_tokens, reasoning, reasoning_effort, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_p
OpennessClosed weights · closed lab
StageAPI only
Confidencemedium
Pricing (USD per M tokens) in $1.50 · out $9.00 · cache read $0.15
OpenRouter list price (cheapest live endpoint) · source · observed 2026-10-24 21:26 UTC

Open alternatives 5

Nearest open-weights models by modality, context and price on this watch list. Not a quality ranking.

ModelOrgParamsContext$/M inLicenseWhy it is here
Kimi-K3 moonshotai 2.78T 1M $0.23 other similar context (1.05M), cheaper input price ($0.2261/M vs $1.5/M), vision input
MiniMax-M3 MiniMaxAI 427B 1M $0.22 other similar context (1.05M), cheaper input price ($0.224/M vs $1.5/M), vision input
Qwen3.5-4B Qwen 4.66B 256K — apache-2.0 vision input
DeepSeek-V4.1-Flash-1017 deepseek-ai 763B 1M $0.20 mit similar context (1.05M), cheaper input price ($0.2/M vs $1.5/M), vision input
Kimi-K2.6 moonshotai 1.03T 256K $0.45 other cheaper input price ($0.44935/M vs $1.5/M), vision input

Get alerts

Watch the release radar

Email alerts are not open yet; the feeds above are the same data. See feeds for the item schema.

Sources

Radar run: 2026-10-25 06:51 UTC · Last verified 2026-10-25 06:51 UTC