GPT-5.6 Sol
gpt-5.6-solTop GPT-5.6 model. Current price is promotional (down from $5 / $30), guaranteed at least through November 21, 2026. Long-context: $8 input / $30 output per 1M. Built by OpenAI.
Prices updated
Input price
$2.00
per 1M tokens · Standard
Output price
$10
per 1M tokens · Standard
Input limit
1.1M
tokens
Output limit
128K
tokens
Input formats
Output formats
GPT-5.6 Sol price history
4 price records since 9/25/2026 · 2 changes
GPT-5.6 Sol cost calculator
$90/month
Standard pricing
Overview
What is GPT-5.6 Sol?
GPT-5.6 Sol is a text & reasoning and code & slms and vision model from OpenAI. Top GPT-5.6 model. Current price is promotional (down from $5 / $30), guaranteed at least through November 21, 2026. Long-context: $8 input / $30 output per 1M. Its 1.1M context window and $2.00 input price make it a candidate for quality-focused production applications.
Benchmarks
GPT-5.6 Sol benchmarks & speed
How GPT-5.6 Sol scores on standardized evaluations, and where it lands among every model we track.
47.0
Intelligence Index
81tok/s
Output speed
1320
DesignArena Elo
Reasoning
GPQA Diamond
94.1%
Graduate-level scientific reasoning · top 4%
HLE
49.5%
Humanity's Last Exam · top 3%
Coding
SciCode
57.1%
Python for scientific computing · top 18%
Latency & design
- Time to first token
- 107.55s
- DesignArena win rate
- 56.8%
- Design battles judged
- 25,726
Independent scores from Artificial Analysis and DesignArena · updated 10/8/2026. Higher is better; ranks compare against every model we track with that score.
Rates
GPT-5.6 Sol pricing
Pricing is based on token usage. Provider-specific caching, batch, regional, and tool charges may affect the final cost.
Input · Standard
$2.00
Per 1M tokens
Cached input · Standard
$0.20
Per 1M tokens
Capabilities
GPT-5.6 Sol Tools
Tools available when using GPT-5.6 Sol through supported provider APIs.
Function calling
Supported
Structured outputs
Supported
JSON mode
Supported
Reasoning
Supported
Built-in web search
Not supported
Log probabilities
Not supported
Deterministic seed
Supported
Parallel tool calls
Not supported
Prompt caching
Supported
Where to run it
GPT-5.6 Sol API providers
7 providers serve GPT-5.6 Sol. Prices are per 1M tokens; uptime is the last 24 hours.
| Provider | Input | Output | Cached | Context | Uptime |
|---|---|---|---|---|---|
| OpenAI | $1.00 | $5.00 | $0.10 | 1.1M | 99.09% |
| OpenAI | $2.00 | $10 | $0.20 | 1.1M | 99.99% |
| OpenAI | $4.00 | $20 | $0.40 | 1.1M | 100% |
| Azure | $4.00 | $20 | $0.40 | 1.1M | 99.97% |
| Azure | $4.40 | $22 | $0.44 | 1.1M | 100% |
| Amazon Bedrock | $4.40 | $22 | $0.44 | 1.1M | 100% |
| Azure | $4.40 | $22 | $0.44 | 1.1M | 99.98% |
- Input
- $1.00
- Output
- $5.00
- Cached
- $0.10
- Context
- 1.1M
- Uptime
- 99.09%
- Input
- $2.00
- Output
- $10
- Cached
- $0.20
- Context
- 1.1M
- Uptime
- 99.99%
- Input
- $4.00
- Output
- $20
- Cached
- $0.40
- Context
- 1.1M
- Uptime
- 100%
- Input
- $4.00
- Output
- $20
- Cached
- $0.40
- Context
- 1.1M
- Uptime
- 99.97%
- Input
- $4.40
- Output
- $22
- Cached
- $0.44
- Context
- 1.1M
- Uptime
- 100%
- Input
- $4.40
- Output
- $22
- Cached
- $0.44
- Context
- 1.1M
- Uptime
- 100%
- Input
- $4.40
- Output
- $22
- Cached
- $0.44
- Context
- 1.1M
- Uptime
- 99.98%
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Strengths and limitations
Strengths
- Measured results (AA Intelligence 47 · DesignArena Elo 1320 · Arena Elo 1255 · MMLU-Pro 82.8%) position it for demanding production work.
- 1.1M context supports large documents, repositories and extended conversations.
- Supports text & reasoning and code & slms and vision workloads in one model.
Limitations
- Generated tokens cost 5× more than input tokens, which matters for verbose responses.
- Large context capacity does not guarantee consistent retrieval across the entire prompt.
- Arena Elo and MMLU-Pro are directional; test accuracy, latency and reliability on your own workload before committing.
Arena Elo, MMLU-Pro and pricing figures are illustrative; validate current vendor terms before purchase.
Same provider