Gemini 3.7 Flash vs GPT-5.6 Sol

API pricing, context window and capabilities for Gemini 3.7 Flash and GPT-5.6 Sol, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

Gemini 3.7 Flash wins on price. GPT-5.6 Sol wins on Terminal-Bench, on intelligence and on context window.

Price
Gemini 3.7 Flash
Terminal-Bench
GPT-5.6 Sol
Intelligence
GPT-5.6 Sol
Context window
GPT-5.6 Sol

Key takeaways

who wins on what, from the published numbers

Gemini 3.7 Flash wins

  • Cheaper input ($0.75 vs $2.00 /1M)
  • Cheaper output ($3.75 vs $10.00 /1M)
  • More serving providers (7 vs 6)
  • Supports audio

GPT-5.6 Sol wins

  • Larger context window (1M vs 1.1M)
  • Higher max output (66K vs 128K)
Cheaper overall
Gemini 3.7 Flash
$0.75 + $3.75 /1M
Larger context
GPT-5.6 Sol
1.1M
More providers
Gemini 3.7 Flash
7 providers

Pricing & specs

cheapest listed route · per 1M tokens
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
Gemini 3.7 FlashGPT-5.6 Sol
Input $/1M$0.75via Google best$2.00OpenRouter routed quote
Output $/1M$3.75via Google best$10.00OpenRouter routed quote
Context window1M 1.1M best
Max output66K 128K best
Serving providers7 best6
DateReleased Aug 14, 2026 Released Jul 9, 2026

Benchmarks

Benchmark scores, side by side
Gemini 3.7 FlashGPT-5.6 Sol
Intelligence39.1 47.0 best
Terminal-Bench86% 90% best
GPQA Diamond95% best94%
Output speed318 t/s best94 t/s
Latency (TTFT)8.87s best138.40s

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
Gemini 3.7 Flash
via Vertex AI Language Models
$7.50
GPT-5.6 Sol
via OpenRouter
$20

Capabilities

feature support, side by side
FeatureGemini 3.7 FlashGPT-5.6 Sol
Vision✓✓
Tool use✓✓
Reasoning✓✓
Audio✓—
Prompt caching✓✓
Structured output✓✓
Web search✓✓

Related comparisons

Frequently asked questions

Which is cheaper, Gemini 3.7 Flash or GPT-5.6 Sol?
Gemini 3.7 Flash is cheaper for input ($0.75 vs $2.00 per 1M tokens) from Google. Gemini 3.7 Flash is cheaper for output ($3.75 vs $10.00 per 1M tokens) from Google.
What is the context window difference between Gemini 3.7 Flash and GPT-5.6 Sol?
Gemini 3.7 Flash has a 1M-token context window and GPT-5.6 Sol has 1.1M tokens, so GPT-5.6 Sol can take a larger prompt.
How do Gemini 3.7 Flash and GPT-5.6 Sol compare on benchmarks?
On the tracked benchmarks, GPT-5.6 Sol leads on Terminal-Bench, and GPT-5.6 Sol leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

Every weekday

AI moves fast. Here's your debrief.

News, analysis, tools, and more.

For people who build with AI