GPT-5.6 Sol vs Inkling
API pricing, context window and capabilities for GPT-5.6 Sol and Inkling, 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. Inkling wins on price.
Price
Inkling
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 1M)
- Higher max output (128K vs 33K)
- Has web search
Inkling wins
- Cheaper input ($2.00 vs $0.95 /1M)
- Cheaper output ($10.00 vs $4.05 /1M)
Cheaper overall
Inkling
$0.95 + $4.05 /1M
Larger context
GPT-5.6 Sol
1.1M
More providers
Tied
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 | Inkling | |
|---|---|---|
| Input $/1M | $2.00OpenRouter routed quote | $0.95via DeepInfra best |
| Output $/1M | $10.00OpenRouter routed quote | $4.05via Baseten best |
| Context window | 1.1M best | 1M |
| Max output | 128K best | 33K |
| Serving providers | 6 | 6 |
| Date | Released Jul 9, 2026 | Released Jul 16, 2026 |
Benchmarks
Benchmark scores, side by side| GPT-5.6 Sol | Inkling | |
|---|---|---|
| Intelligence | 47.0 best | 25.0 |
| Terminal-Bench | 90% best | 55% |
| GPQA Diamond | 94% best | 87% |
| Output speed | 94 t/s | 186 t/s best |
| Latency (TTFT) | 138.40s | 1.91s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GPT-5.6 Sol
via OpenRouter
$20
Inkling
via DeepInfra
$8.80
Capabilities
feature support, side by side| Feature | GPT-5.6 Sol | Inkling |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | ✓ | — |
Related comparisons
Frequently asked questions
Which is cheaper, GPT-5.6 Sol or Inkling?
Inkling is cheaper for input ($2.00 vs $0.95 per 1M tokens) from DeepInfra. Inkling is cheaper for output ($10.00 vs $4.05 per 1M tokens) from Baseten.
What is the context window difference between GPT-5.6 Sol and Inkling?
GPT-5.6 Sol has a 1.1M-token context window and Inkling has 1M tokens, so GPT-5.6 Sol can take a larger prompt.
How do GPT-5.6 Sol and Inkling 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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