Gemini/Fast / Budget

Gemini 2.5 Flash

Gemini 2.5 Flash is Gemini's fastest and most affordable model, priced at $0.30/MTok input and $2.50/MTok output with a 1,048.576K context window. Backfilled on 2026-09-23. Prices confirmed by the provider pricing page and the LiteLLM cross-check. Release date not published in a machine-readable source. Not yet benchmarked, so never recommended.

Input $/MTok

$0.30

Output $/MTok

$2.50

Context window

1,048.576K

Cache read discount

90% off

Gemini 2.5 Flash pricing breakdown

RateInput $/MTokOutput $/MTok
Standard$0.30$2.50
Cached read (90% off input)$0.03-
Cached write (no surcharge)$0.30-
Batch (50% off)$0.15$1.25

All rates in USD per million tokens. Prices verified against provider documentation.

Gemini 2.5 Flash task benchmarks

Confidence scores (0-100) and cross-provider rank for each task type. Rank 1 is best across all 72 models.

Not benchmarked. The third-party benchmark source used for confidence scores does not cover Gemini models yet. Scores will appear here once independent benchmarks are published.

Gemini 2.5 Flash cost by use case

Estimated cost per API call using default token counts for each workload.

Use caseInput tokensOutput tokensCost / call
Code Generation2,0004,000$0.0106
Unit Test Generation3,0005,000$0.0134
SQL Generation1,5001,000$0.002950
API Generation3,0006,000$0.0159
Code Refactoring4,0004,000$0.0112
Code Review5,0002,000$0.006500
PR Review8,0003,000$0.009900
Security Review6,0002,500$0.008050
Bug Detection5,0002,000$0.006500
Document Summarization10,0001,000$0.005500
PDF Summarization15,0001,500$0.008250
Meeting Notes8,0002,000$0.007400

Monthly cost projections

Projected monthly spend at different call volumes, using code generation as a representative workload (2,000 input / 4,000 output tokens per call).

Calls / monthWithout cachingWith caching (90% read discount)
1K$10.6$10.22
10K$106$102.22
100K$1,060$1,022.2
500K$5,300$5,111
1M$10,600$10,222

Caching estimate assumes 70% of input tokens are cache reads. Your actual cache hit rate will depend on prompt structure and reuse.

Fast / Budget alternatives to Gemini 2.5 Flash

Same-tier models from other providers, sorted by input price.

ModelProviderInput $/MTokOutput $/MTokInput savings
GPT 5 NanoGPT$0.05$0.4083% cheaper
GPT 4.1 NanoGPT$0.10$0.4067% cheaper
GPT 6 LunaGPT$0.10$0.5067% cheaper
GPT 4o MiniGPT$0.15$0.6050% cheaper
GPT 5.6 LunaGPT$0.20$1.2033% cheaper
GPT 5.4 NanoGPT$0.20$1.2533% cheaper
GPT 5 MiniGPT$0.25$2.0017% cheaper
GPT 4.1 MiniGPT$0.40$1.6033% more
GPT 3.5 TurboGPT$0.50$1.5067% more
GPT 3.5 Turbo (0125)GPT$0.50$1.5067% more
GPT 5.4 MiniGPT$0.75$4.50150% more
Claude Haiku 4.5Claude$1.00$5.00233% more
Grok Build 0.1Grok$1.00$2.00233% more
o3 MiniGPT$1.10$4.40267% more
o4 MiniGPT$1.10$4.40267% more

Track your Gemini 2.5 Flash spend

See exactly how much you spend on Gemini 2.5 Flash and where you can save. Two-line wrapper install, no API keys shared.