Gemini 3.7 Flash vs Seed 2.1 Pro: Specs & Benchmark Comparison
Gemini 3.7 Flash is developed by Google, while Seed 2.1 Pro comes from ByteDance. Seed 2.1 Pro was released in June 2026, and Gemini 3.7 Flash followed 2 months later in August 2026.
The two models share 4 published benchmarks. Gemini 3.7 Flash leads on 3 of them, Seed 2.1 Pro on 1. The widest gaps are on Agents' Last Exam, where Seed 2.1 Pro scores 41.4% against 26.3%; Terminal-Bench 2.1, where Gemini 3.7 Flash scores 85.8% against 71.0%. Averaged across everything we track, Gemini 3.7 Flash sits at 59.8% and Seed 2.1 Pro at 63.7%.
Gemini 3.7 Flash is available through an API at $0.75 per million input tokens with a 1M-token context window. We do not track a hosted API for Seed 2.1 Pro, so pricing and context cannot be compared directly.
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| Characteristic | Gemini 3.7 Flash | Seed 2.1 Pro |
|---|---|---|
| Company | ByteDance | |
| Release Date | August 13, 2026 | June 24, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | — |
| Context (output) | 66K | — |
| Input Price / 1M | $0.75 | — |
| Output Price / 1M | $3.75 | — |
| Average Score | 59.8% | 63.7% |
| Benchmarks | ||
| Agents' Last Exam | 26.3% | 41.4% |
| Terminal-Bench 2.1 | 85.8% | 71.0% |
| LVBench | 85.4% | 78.0% |
| CharXiv-R | 88.7% | 86.4% |
Visual Benchmark Comparison
Verdict
Gemini 3.7 Flash leads in 1 out of 2 comparison categories.
Both models show comparable average scores: Gemini 3.7 Flash — 0.6, Seed 2.1 Pro — 0.6.
Gemini 3.7 Flash is newer: released 8/13/2026 vs 6/24/2026.
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Frequently Asked Questions
Which is better for coding — Gemini 3.7 Flash or Seed 2.1 Pro?
Which model is cheaper — Gemini 3.7 Flash or Seed 2.1 Pro?
Which has a larger context window — Gemini 3.7 Flash or Seed 2.1 Pro?
The Gemini 3.7 Flash and Seed 2.1 Pro comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3.7 Flash or Seed 2.1 Pro page. See also the complete list of AI model comparisons.