GPT-5.6 Sol
OpenAI's flagship GPT-5.6 model for complex professional work across coding, research, cybersecurity, science, computer use, and design.
Overview
Recommended use cases and a precise technical profile, generated from the same reviewed model record used throughout this page.
Long-horizon implementation, terminal workflows, debugging, and multi-step software delivery.
Deep analysis across technical, scientific, security, and evidence-heavy knowledge work.
Tool-driven workflows that combine reasoning, structured outputs, computer use, and web search.
| Model ID | gpt-5.6-sol | Provider | OpenAI |
| Protocol | OPENAI compatible | DIT availability | 1 active route |
| Input | Text, Image | Output | Text |
| Context window | 1,050,000 tokens | Maximum output | 128,000 tokens |
| Released | Jul 9, 2026 | Knowledge cutoff | Feb 16, 2026 |
| Endpoint | Path | Status |
|---|---|---|
| Responses | /v1/responses | Supported |
| Chat Completions | /v1/chat/completions | Supported |
| Batch | /v1/batch | Supported |
Providers
Compare DIT market routing with the official upstream reference across price, speed, and availability. Supplier identities remain private.
| Provider | Input /M | Output /M | Cache read /M | Latency | Throughput | Uptime |
|---|---|---|---|---|---|---|
DIT Market 40% off Aggregated supply · 1 active route | 6282 msP50 TTFT | 43.8 tpsP50 output | 41.18%30-day success | |||
OpenAI official Reference Direct upstream · reviewed list price | $5 | $30 | $0.5 | —Not published | —Not published | OperationalChecked Jul 9, 2026 |
Prices are USD per 1M tokens. DIT performance and uptime appear only after 50 eligible requests; supplier identities and customer traffic remain private.
Pricing
Compare DIT market rates directly with reviewed official prices so savings remain visible and auditable.
| Usage | Official | DIT market | Saving | Billing basis |
|---|---|---|---|---|
| Input tokens | $5 | $3 | ~40% | Per 1M tokens |
| Output tokens | $30 | $18 | ~40% | Per 1M tokens |
| Cached input | $0.5 | $0.3 | ~40% | Per 1M cached tokens |
Prompts above 272K input tokens use OpenAI's long-context pricing tier.
Performance
Latency, throughput, activity, and request success use privacy-safe DIT runtime aggregates only when the eligibility threshold is met.
| Metric | P50 | P95 | Reading |
|---|---|---|---|
| Time to first byte | 6282 ms | 105057 ms | Lower is better |
| End-to-end latency | 13356 ms | — | Lower is better |
| Output throughput | 43.8 tps | — | Higher is better |
Uptime
A concise service-health view with scope and source stated next to the number.
Benchmarks
Reviewed evaluation results with configuration notes and source links kept alongside every score.
| Benchmark | Category | Score | Configuration | Source |
|---|---|---|---|---|
| Agents' Last Exam | Agentic | 52.7% | Professional long-horizon workflows; max reasoning. | Source ↗ |
| Artificial Analysis Intelligence Index v4.1 | General | 58.9 | Index score reported by OpenAI for max reasoning. | Source ↗ |
| Artificial Analysis Coding Agent Index v1.1 | Coding | 80 | Coding-agent index reported by OpenAI for max reasoning. | Source ↗ |
Quick Start
A copy-ready request for the compatible DIT endpoint using this model's reviewed identifier.
curl https://api.dit.ai/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-sol",
"messages": [{"role":"user","content":"Explain dynamic model routing."}]
}'Sources
Field-level provenance keeps pricing, limits, capabilities, and benchmarks independently reviewable.
| Source | Type | Covers | Checked |
|---|---|---|---|
| OpenAI API model documentation ↗ | Official | Pricing, Context, Modalities, Capabilities, Knowledge cutoff, Aliases, Reasoning effort, Endpoint, Official tool support, Not supported, Usage rules | Aug 12, 2026 |
| OpenAI GPT-5.6 launch ↗ | Official | Technical profile, Released, Benchmarks | Aug 12, 2026 |
Official sources take priority. Third-party metadata is retained only when its field and review date are shown.
Frequently asked questions
Answers use the same reviewed facts and pricing fields presented in the tables above.
What is GPT-5.6 Sol?+
OpenAI's flagship GPT-5.6 model for complex professional work across coding, research, cybersecurity, science, computer use, and design.
How much does GPT-5.6 Sol cost?+
The reviewed official rate is $5 per 1M input tokens and $30 per 1M output tokens. DIT pricing is shown only when a live DIT route exists.
What is the context length of GPT-5.6 Sol?+
GPT-5.6 Sol supports a reviewed context window of 1,050,000 tokens and up to 128,000 output tokens.
What capabilities does GPT-5.6 Sol support?+
Reviewed capabilities include Reasoning, Function calling, Structured outputs, Computer use, Web search. Consult the linked official documentation for endpoint-specific limits.
What inputs and outputs does GPT-5.6 Sol support?+
Reviewed input modalities: Text, Image. Reviewed output modalities: Text.
Which API endpoints and reasoning levels does GPT-5.6 Sol support?+
GPT-5.6 Sol is documented for Responses, Chat Completions, Batch. Reasoning effort can be set to none, low, medium, high, xhigh, max, with medium as the documented default.
Is GPT-5.6 Sol available on DIT?+
GPT-5.6 Sol currently has 1 active route. DIT selects eligible supply by price and health, with automatic failover when another route is available.
When was GPT-5.6 Sol released?+
GPT-5.6 Sol was released on Jul 9, 2026. Its reviewed knowledge cutoff is Feb 16, 2026.