Google / google/gemini-3.8-flash
Gemini 3.8 Flash - access through LLMTR
Built for end-to-end software tasks, multi-step agent loops, and image, video, audio, or PDF analysis with 1M context and a 65K output ceiling. Thinking is tunable across low, medium, and high, with medium as the default. On hard tasks it takes extra reasoning steps and calls tools more often, so it can finish the same work with more tokens than Gemini 3.7 Flash; when token cost is the binding constraint, use a lower thinking level or stay on 3.7 Flash. Introductory pricing applies through 31 December 2026; standard rates take over on 1 January 2027.
Technical specifications
| Canonical ID | google/gemini-3.8-flash |
|---|---|
| Provider | |
| Context window | 1,048,576 tokens |
| Operations | CHAT_COMPLETIONS, RESPONSES |
| Modalities | image, video, audio, text |
Pricing
An 8% platform margin applies to credit top-ups; model usage prices are not separately marked up.
| Operation | Metric | Unit | Price |
|---|---|---|---|
| CHAT_COMPLETIONS | INPUT_TEXT | PER_1M_TOKENS | $0.750000 |
| CHAT_COMPLETIONS | CACHE_READ | PER_1M_TOKENS | $0.075000 |
| CHAT_COMPLETIONS | OUTPUT_TEXT | PER_1M_TOKENS | $3.75 |
| CHAT_COMPLETIONS | CACHE_STORAGE | PER_1M_TOKEN_HOURS | $0.500000 |
| CHAT_COMPLETIONS | INPUT_AUDIO | PER_1M_TOKENS | $0.750000 |
| CHAT_COMPLETIONS | INPUT_IMAGE | PER_1M_TOKENS | $0.750000 |
| CHAT_COMPLETIONS | INPUT_VIDEO | PER_1M_TOKENS | $0.750000 |
| CHAT_COMPLETIONS | TOOL_CALL | PER_1K_CALLS | $14.00 |
Example usage
With existing OpenAI SDK flows, change only the base URL and model identifier.
curl https://llmtr.com/v1/chat/completions -H "Authorization: Bearer llmtr-your_key" -H "Content-Type: application/json" -d '{"model":"google/gemini-3.8-flash","messages":[{"role":"user","content":"Hello"}]}'
Guides about this model
- MiniMax M3.1 Flash vs Haiku 5.5, GPT-6 Luna, Gemini 3.8 Flash - On LLMTR all four models are called with the same API key on /v1/chat/completions. For prompts up to 100,000 tokens Claude Haiku 5.5 and GPT-6 Luna cost less; once a prompt passes 272,000 tokens MiniMax M3.1 Flash moves ahead, because its price does not change up to 1,000,000 tokens. Video input is on MiniMax M3.1 Flash and Gemini 3.8 Flash.
- Jais ASR vs Grok Voice STT vs Gemini 3.8 Flash for Arabic - All three models run on LLMTR with the same API key. Jais ASR transcribes the Arabic dialects of 19 countries, names the dialect and is free for 60 minutes a day until 5 November 2026, 23:59 (TRT). Grok Voice STT costs $0.10 per hour of audio; Gemini 3.8 Flash can translate or summarize the transcript in the same request.
- Mercury 3 vs Claude Haiku 5.5, GPT-6 Luna, Gemini 3.8 Flash - On LLMTR all four models are called with the same API key on /v1/chat/completions. Mercury 3 accepts text only; at its introductory price through 25 October 2026 it matches Haiku 5.5 and GPT-6 Luna on input and is below them on output, and from 26 October Haiku and Luna cost less on short prompts. For images, PDF, audio and video the other three models come first.
- Gemini Flash or Pro: Which Model Fits Your Workload? - Gemini Flash is the economical default for high-volume and tool-using work; Gemini Pro targets harder reasoning. Compare prices, thinking levels, retirement dates, and a 20-50-prompt routing test.
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- Gemini 2.5 Flash Native Audio (Live API) google/gemini-2.5-flash-native-audio-preview-12-2025
- Gemini 2.5 Flash Preview TTS google/gemini-2.5-flash-preview-tts
- Gemini 2.5 Pro Preview TTS google/gemini-2.5-pro-preview-tts
- Gemini 3 Flash Preview google/gemini-3-flash-preview
- Gemini 3.1 Flash-Lite google/gemini-3.1-flash-lite