Cheap Gemini Flash API: Get 3.8 Flash for Up to 59% Less
Gemini 3.8 Flash from $0.30201255 / $1.51006275 per 1M input/output tokens. Compare current Google introductory, Batch/Flex and OpenRouter prices.
Published
Gemini 3.8 Flash starts at $0.30201255 input / $1.51006275 output across 7 public routes. That is up to 59% below Google's current introductory Standard price. Compare the same Flash model before moving to a different tier.
Checked 2026-11-04 03:32 UTC. Prices are USD per 1M input / output tokens; the table shows the lowest and highest input-priced public route as input / output pairs. Counts exclude client-only routes. The live marketplace card controls current price and availability.
| Model ID | Official reference price | APIMaster current price | Active routes | Discount | Model card |
|---|---|---|---|---|---|
gemini-3.8-flash |
$0.75 / $3.75 | $0.30201255 / $1.51006275 – $1.5 / $7.5 | 7 | Up to 59% off | Compare routes |
Google currently charges $0.75 / $3.75 through December 31, 2026; the announced January 1, 2027 rate is $1.50 / $7.50. The market card's $1.50 / $7.50 reference is a future rate, so an approximately 80% saving is not the current official-price discount.
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Gemini Flash API pricing: official vs OpenRouter vs APIMaster
| Provider / model | Input / output | Billing condition | APIMaster saving |
|---|---|---|---|
| APIMaster · gemini-3.8-flash | $0.30201255 / $1.51006275 | Standard, uncached | — |
| Google Standard | $0.75 / $3.75 | Current introductory rate | At least 59% lower token rates |
| Google Batch / Flex | $0.375 / $1.875 | Batch / Flex conditions apply | At least 19% lower token rates |
| OpenRouter · google/gemini-3.8-flash | $0.825 / $4.125 | Catalog snapshot; provider terms apply | At least 63% lower token rates |
Current Google Batch/Flex token rates are $0.375 / $1.875; APIMaster's lowest ordinary rates are about 19.46% lower. Free-tier quotas and data terms differ from paid API access. Official cached input is $0.075, with storage billed separately; search and thinking can add charges. Future announced prices are not today's invoice.
What does a real token budget cost?
Budget: 100,000 uncached input tokens + 20,000 billed output tokens per task. Formula: input_tokens × input_rate / 1,000,000 + output_tokens × output_rate / 1,000,000. This is arithmetic, not a measured model benchmark.
| Model ID | Official reference / task | APIMaster from / task | APIMaster / 1,000 tasks |
|---|---|---|---|
gemini-3.8-flash |
$0.15 | $0.060403 | $60.4 |
The 1,000-task column scales the same budget; it is not a bulk discount. Figures are rounded and exclude cache, storage, search/tools, taxes and retries. Include billed reasoning output and every agent call. Different models can consume different token counts; compare cost per accepted result.
Which Gemini Flash model or route should you buy?
Use 3.8 Flash for the Flash workflow you can purchase now. A 1,000-task budget in the table is about $60.40 here versus $150 at current official Standard, saving about $89.60 before extras. Test your own extraction, coding and tool-use cases rather than assuming equal token use across models.
Gemini 3.9 Flash and restricted Carbon access are not substitutes for a verified public 3.8 route. Keep model identity and API availability separate from community release expectations. For a different premium tier, compare the separate Cheap Gemini 4 Argon guide.
Choose the route inside the same model card and confirm supported tools, streaming and limits. Fingerprint results are route-specific identity evidence; availability records are point-in-time checks, not an uptime guarantee. Missing test records do not count as passes.
How to get a discounted Gemini Flash API key
Compare the live model card → register → fund your wallet → create an API key. Use your APIMaster key, https://apimaster.ai/v1, and the exact model ID gemini-3.8-flash:
curl "https://apimaster.ai/v1/chat/completions" \
-H "Authorization: Bearer $APIMASTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"gemini-3.8-flash","max_tokens":512,"messages":[{"role":"user","content":"Return a JSON object with a short summary of: API costs depend on token usage."}]}'
This is a minimal integration example, not a new paid inference test. Check endpoint compatibility, returned usage and your first small bill before increasing traffic. An APIMaster key does not fund an account at the original vendor.
FAQ
Is this the cheapest API on the internet?
No universal lowest-price claim is made. This guide compares the checked public routes and named billing modes; another provider or specialized route can be cheaper.
Does an app subscription include these API credits?
Treat app subscriptions, coding plans and pay-as-you-go API wallets as separate products unless their terms explicitly include the same usage.
Does the headline discount also cover cache hits?
No. Compare cached reads, cache writes, storage, tools and timing separately; ordinary token discounts do not prove the same saving on every billing item.
Does the GPT trial promotion provide this model for free?
The GPT trial offer is separate. It does not promise free credits for the models in this guide; check the current trial catalog and eligibility.
Sources and related guides
Official pricing · OpenRouter model catalog
Gemini 3.8 Flash · Gemini 3.9 Flash · Cheap Gemini 4 Argon
Other cheap API guides: Claude Sonnet 5.5 · DeepSeek · GLM · Qwen
Get started: Compare the live model card → register → fund your wallet → create an API key. Use your APIMaster key, https://apimaster.ai/v1, and the exact model ID gemini-3.8-flash