GPT-5.6 Sol
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Input / 1M
$4.00
Output / 1M
$20.00
Context
1.0M
AA Intelligence
47
Closed weights — available only as a hosted API
file + image + text → text
Knowledge cutoff Feb 2026
View on OpenRouter ↗
Pricing
via OpenRouter · USD per 1M tokens · synced 2026-10-24$4.00
input / 1M
$20.00
output / 1M
$0.40
cached input / 1M
$24.00
1M in + 1M out
:batch variant
$2.00 in · $10.00 out
Price tiers
- Above 272K prompt tokens: input $8.00/M, output $30.00/M (2× base)
- Context window
- 1,050,000 tokens
- Max output
- 128,000 tokens
- Providers
- 3
- Cheapest provider
- OpenAI · $2.00 / $10.00
- Best throughput
- —
- AA Intelligence / Coding / Agentic
- 47 / 77.4 / 50.2
✓ Tool calling
✓ Reasoning
✓ Structured outputs
✓ Image input
✓ File input
✗ Audio input
✓ Prompt caching
Price history
tracking started — chart appears after 7 days of snapshots (6 recorded)Current: $4.00 input · $20.00 output per 1M tokens
Benchmarks
Third-party indices as published through OpenRouter — Artificial Analysis and Design Arena. Not measured by us.
- AA Intelligence Index
- 47
- AA Coding Index
- 77.4
- AA Agentic Index
- 50.2
Providers
3 providers · per 1M tokens · last 30 min metrics| Provider | Quant | Context | Input | Output | Uptime | Tok/s |
|---|---|---|---|---|---|---|
| OpenAI | unknown | 1.0M | $2.00 | $10.00 | 100% | — |
| Azure | unknown | 1.0M | $4.00 | $20.00 | 100% | — |
| OpenAI | unknown | 1.0M | $4.00 | $20.00 | 100% | — |
| Amazon Bedrock | unknown | 1.0M | $4.40 | $22.00 | — | — |
| Azure | unknown | 1.0M | $4.40 | $22.00 | — | — |
| Azure | unknown | 1.0M | $4.40 | $22.00 | — | — |
| OpenAI | unknown | 1.0M | $8.00 | $40.00 | — | — |
Provider data from OpenRouter's endpoint listing, refreshed daily.
Specifications
- Organisation
- openai
- Released on OpenRouter
- 2026-07-09
- Context window
- 1,050,000 tokens
- Max output
- 128,000 tokens
- Input
- file, image, text
- Output
- text
- Knowledge cutoff
- February 2026
- Tokenizer
- GPT
- Moderated by provider
- Yes
- OpenRouter id
- openai/gpt-5.6-sol
Compare with
Popular comparisons
Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.