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Gemini 2.5 Flash Preview (09/2025)

google·google/gemini-2.5-flash-preview-09-2025·GA·Closed·gemini series
Compact GPT model for low-latency assistance and high-volume workloads

Specs & pricing

Input / output per 1M tokens
Reference price·302.AI
$0.30 / $2.50
Blended $0.85 · Cache read —
Lowest paid·NanoGPTGateway
$0.30 / $2.50
Blended $0.85 · 1× spread
Context
1,000,000
Output limit
65,536
Knowledge cutoff
2025-01
Released / updated
2025-09-25 / 2025-09-26
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments
⚠ Providers report capability flags inconsistently
Modalities
TextImageAudioPDF

Available at 2 providers2 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
NanoGPTGateway$0.30$2.50$0.03—1,048,576 ⚠65,536
302.AIGateway$0.30$2.50——1,000,00065,536

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = loweffort = mediumeffort = high

Your usage cost

1NanoGPT$152.60
2302.AI$185.00
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input listOutput listMin blended
$2.50$02026-08-052026-08-132026-08-05 · Input list $0.302026-08-06 · Input list $0.302026-08-07 · Input list $0.302026-08-08 · Input list $0.302026-08-09 · Input list $0.302026-08-10 · Input list $0.302026-08-11 · Input list $0.302026-08-12 · Input list $0.302026-08-13 · Input list $0.302026-08-05 · Output list $2.502026-08-06 · Output list $2.502026-08-07 · Output list $2.502026-08-08 · Output list $2.502026-08-09 · Output list $2.502026-08-10 · Output list $2.502026-08-11 · Output list $2.502026-08-12 · Output list $2.502026-08-13 · Output list $2.502026-08-05 · Min blended $0.852026-08-06 · Min blended $0.852026-08-07 · Min blended $0.852026-08-08 · Min blended $0.852026-08-09 · Min blended $0.852026-08-10 · Min blended $0.852026-08-11 · Min blended $0.852026-08-12 · Min blended $0.852026-08-13 · Min blended $0.85

Related models

Gemini 3.8 Flash-Lite TTSsame series$0.50 / $6.00Gemini 3.8 Flash TTSsame series$0.50 / $9.00Gemini 3.8 Livesame series$0.75 / $4.50GLM-5.3-Flashcheaper alternative$0.15 / $0.50DeepSeek V4.1 Flashcheaper alternative$0.15 / $0.60GPT-5.6 Lunacheaper alternative$0.20 / $1.20Qwen3.8 Flashcheaper alternative$0.15 / $0.47
Data partly from models.dev (MIT) · 302.AI official docs ↗