Gemini 3.8 Flash vs Gemini 3.8 Live Extended Thinking
Pricing verdict: Gemini 3.8 Flash vs Gemini 3.8 Live Extended Thinking: input pricing is tied at $0.75/M, Gemini 3.8 Flash is cheaper for output-heavy usage ($3.75/M output), and Gemini 3.8 Flash is better for long-context tasks (1,048,576 tokens).
Direct answer: input pricing is tied. Choose Gemini 3.8 Flash for cheaper output and choose Gemini 3.8 Flash when your workload needs longer context.
Compare API pricing, input and output token costs, context windows, and monthly estimates on one page so you can pick the right model fast.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Gemini 3.8 Flash
Gemini 3.8 Live Extended Thinking
Cost Differences
Gemini 3.8 Live Extended Thinking costs more than Gemini 3.8 Flash
Quick Recommendation
Winner for direct API pricing: Gemini 3.8 Flash. At the default workload, Gemini 3.8 Flash saves about $1.125/month ($13.6875/year) versus Gemini 3.8 Live Extended Thinking.
Feature Comparison
| Feature | Gemini 3.8 Flash | Gemini 3.8 Live Extended Thinking |
|---|---|---|
| Provider | ||
| Input Price | $0.75/1M tokens | $0.75/1M tokens |
| Output Price | $3.75/1M tokens | $4.50/1M tokens |
| Context Window | 1,048,576 tokens | 131,072 tokens |
| Max Output | 65,536 tokens | 65,536 tokens |
| Category | flagship | reasoning |
| Capabilities | textvisionaudiovideocodereasoning | textvisionaudiovideoreasoningstreaming |
| Release Date | 9/2/2026 | 9/15/2026 |
Gemini 3.8 Flash vs Gemini 3.8 Live Extended Thinking: Which Should You Choose?
Choosing between Gemini 3.8 Flash and Gemini 3.8 Live Extended Thinking depends on your priorities: cost efficiency, context length, or raw capability. Both models charge $0.75/1M input tokens, but Gemini 3.8 Flash is cheaper on output at $3.75/1M. Meanwhile, Gemini 3.8 Flash offers a significantly larger context window at 1,048,576 tokens vs 131,072 for Gemini 3.8 Live Extended Thinking.
These models target different tiers: Gemini 3.8 Flash is a flagship model while Gemini 3.8 Live Extended Thinking is reasoning. This means they're optimized for different workloads. Gemini 3.8 Flash is built for complex tasks that require deeper reasoning, while Gemini 3.8 Live Extended Thinking offers better value for routine operations.
Output costs matter too. Gemini 3.8 Flash charges $3.75/1M output tokens vs $4.50 for Gemini 3.8 Live Extended Thinking. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Gemini 3.8 Flash has the edge here at $3.75/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose Gemini 3.8 Flash when:
- • You need a larger context window (1,048,576 tokens)
- • You're already using Google's API ecosystem
Choose Gemini 3.8 Live Extended Thinking when:
- • You're already using Google's API ecosystem
Pros and Caveats at a Glance
Gemini 3.8 Flash
- • Input pricing: $0.75/M tokens
- • Output pricing: $3.75/M tokens
- • Context window: 1,048,576 tokens
- • Max output: 65,536 tokens
Watch out for
- • Trade-offs are minor in this matchup.
Gemini 3.8 Live Extended Thinking
- • Input pricing: $0.75/M tokens
- • Output pricing: $4.50/M tokens
- • Context window: 131,072 tokens
- • Max output: 65,536 tokens
Watch out for
- • Higher output cost than Gemini 3.8 Flash
- • Smaller context window than Gemini 3.8 Flash
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Gemini 3.8 Flash (Google)
Gemini 3.8 Live Extended Thinking (Google)
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Which is cheaper, Gemini 3.8 Flash or Gemini 3.8 Live Extended Thinking?▼
What is the context window difference between Gemini 3.8 Flash and Gemini 3.8 Live Extended Thinking?▼
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