Gemini 2.5 Flash API Pricing
Deprecated: Google deprecated Gemini 2.5 Flash on November 2, 2026. From December 1, 2026 every API request to gemini-2.5-flash is routed to Gemini 3.5 Flash-Lite and billed at Gemini 3.5 Flash-Lite rates. Until then it serves only accounts that have used it before. Google's stable price-performance Gemini 2.5 model for low-latency, high-volume reasoning tasks: $0.3/M input, $2.5/M output, and $0.03/M cached input. Pulled directly from ai.google.dev.
Gemini 2.5 Flash API cost calculator.
Live calculator pre-loaded with current Gemini 2.5 Flash standard rates. Standard text, image, and video input is $0.30/M; audio input is $1/M; output includes thinking tokens.
Gemini 2.5 Flash cost on real workloads.
Coding agent iteration
Document pack analysis
Video + docs briefing
Research agent loop
Large RAG synthesis
This is a chars-per-token approximation, not a real tokenizer. Actual tokens vary by language, code density, and tool-call overhead — counts are typically ±10–20% off for English prose, more for code or non-Latin scripts. For exact billing, use the vendor's official tokenizer.
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| Gemini 3.1 Pro Preview | $2.00 cache $0.20 | $12.00 | $1.44 +5.3× | 1M | Google frontier preview |
| Gemini 3 Flash Preview | $0.50 cache $0.05 | $3.00 | $0.361 +32% | 1M | Cheaper Gemini 3 preview |
| Gemini 3.1 Flash-Lite | $0.25 cache $0.025 | $1.50 | $0.18 deprecated · −34% | 1M | High-volume Gemini 3.1 |
| Gemini 2.5 Pro | $1.25 cache $0.125 | $10.00 | $1.10 deprecated · +4.0× | 1M | Stable Gemini 2.5 Pro |
| Gemini 2.5 Flash Current | $0.30 cache $0.03 | $2.50 | $0.272 agentic 92/8 | 1M | Best price-performance Gemini 2.5 |
| Gemini 2.5 Flash-Lite | $0.10 cache $0.01 | $0.40 | $0.0561 legacy · −4.9× | 1M | Cheapest stable Gemini 2.5 |
| GPT-6.1 Sol | $2.00 cache $0.10 | $10.00 | $1.29 +4.7× | 1.05M | OpenAI's balanced model for coding and agents |
| GPT-6.1 Terra | $1.00 cache $0.05 | $5.00 | $0.645 +2.4× | 1.05M | OpenAI's fast, efficient GPT-6 tier |
Gemini 2.5 Flash has published scores on 2 benchmarks we track; its best placing is #81 of 105 on ARC-AGI-2. All of these scores come from independent leaderboards, not from the lab.
| Benchmark | Score | Rank | Leader | Source |
|---|---|---|---|---|
| ARC-AGI-2 Reasoning | 2.5% ARC Prize verified, best result | #81 of 105 | GPT-6 Astra · 95% | Official leaderboard ARC Prize Foundation |
| ARC-AGI-1 Reasoning | 33.3% ARC Prize verified, best result | #78 of 99 | 6 tied · 98.5% | Official leaderboard ARC Prize Foundation |
Gemini 2.5 Flash API pricing FAQ.
Practical Gemini 2.5 Flash pricing questions, with Google token rates separated from workload assumptions.
Q · 01 Can I still use Gemini 2.5 Flash? +
gemini-2.5-flash are routed automatically to Gemini 3.5 Flash-Lite and billed at Gemini 3.5 Flash-Lite rates. Google tells you to change the model string to gemini-3.5-flash-lite before then and to review its migration guide, because function calling, thinking settings and some sampling parameters change.Q · 02 What is Gemini 2.5 Flash's standard API price? +
gemini-2.5-flash at $0.30/M input, $0.03/M cached input, and $2.50/M output for text, image, and video workloads. Audio input is listed separately at $1/M.Q · 03 Does output pricing include thinking tokens? +
Output price (including thinking tokens). This page treats generated reasoning and answer tokens as part of the published output rate.Q · 04 How much do Batch and Flex cost? +
Q · 05 Is this a preview model? +
Q · 06 What about Google Search grounding costs? +
Q · 07 How accurate is the tokenizer estimate? +
4.0 characters per token as a Gemini planning estimate. Exact billing can differ by language, media inputs, tool calls, and how Google tokenizes multimodal content.