GPT-5.6 Sol vs Mistral Medium 3.5
API pricing, context window and capabilities for GPT-5.6 Sol and Mistral Medium 3.5, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersGPT-5.6 Sol wins on Terminal-Bench, on intelligence and on context window. Mistral Medium 3.5 wins on price.
Price
Mistral Medium 3.5
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 numbersGPT-5.6 Sol wins
- Larger context window (1.1M vs 262K)
- More serving providers (6 vs 4)
- Supports prompt caching
- Has web search
Mistral Medium 3.5 wins
- Cheaper input ($2.00 vs $1.50 /1M)
- Cheaper output ($10.00 vs $7.50 /1M)
- Higher max output (128K vs 262K)
Cheaper overall
Mistral Medium 3.5
$1.50 + $7.50 /1M
Larger context
GPT-5.6 Sol
1.1M
More providers
GPT-5.6 Sol
6 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-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.
| GPT-5.6 Sol | Mistral Medium 3.5 | |
|---|---|---|
| Input $/1M | $2.00OpenRouter routed quote | $1.50via Mistral best |
| Output $/1M | $10.00OpenRouter routed quote | $7.50via Mistral best |
| Context window | 1.1M best | 262K |
| Max output | 128K | 262K best |
| Serving providers | 6 best | 4 |
| Date | Released Jul 9, 2026 | Released Apr 30, 2026 |
Benchmarks
Benchmark scores, side by side| GPT-5.6 Sol | Mistral Medium 3.5 | |
|---|---|---|
| Intelligence | 47.0 best | 14.2 |
| Terminal-Bench | 90% best | 51% |
| GPQA Diamond | 94% best | 75% |
| Output speed | 94 t/s | 167 t/s best |
| Latency (TTFT) | 138.40s | 2.21s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GPT-5.6 Sol
via OpenRouter
$20
Mistral Medium 3.5
via OpenRouter
$15
Capabilities
feature support, side by side| Feature | GPT-5.6 Sol | Mistral Medium 3.5 |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | — |
| Structured output | ✓ | ✓ |
| Web search | ✓ | — |
Related comparisons
Frequently asked questions
Which is cheaper, GPT-5.6 Sol or Mistral Medium 3.5?
Mistral Medium 3.5 is cheaper for input ($2.00 vs $1.50 per 1M tokens) from Mistral. Mistral Medium 3.5 is cheaper for output ($10.00 vs $7.50 per 1M tokens) from Mistral.
What is the context window difference between GPT-5.6 Sol and Mistral Medium 3.5?
GPT-5.6 Sol has a 1.1M-token context window and Mistral Medium 3.5 has 262K tokens, so GPT-5.6 Sol can take a larger prompt.
How do GPT-5.6 Sol and Mistral Medium 3.5 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
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