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GPT-5.6 Sol

openai/gpt-5.6-sol
  • OpenAI
  • Family · GPT-5 Sol
  • Released 9 Jul 2026
  • File · Image · Text → Text
  • Reasoning · adjustable
  • Tools · JSON · Vision
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Spec & list price
Context1M
Max output128K
Input / 1M$4.00
Output / 1M$20.005× input
Scores · standing
Intelligence47.0#16/489
Coding78.3#2/196
Usage
Tokens / day17.8B▼ 27% 7d
Usage rank#76
Requests / day944.7K
Tool calls / req0.38
Per request · 30 days
Avg input23.1K1.6× median
Avg output5550.8× median
Cache hit87%1.2× median
Reasoning share40%0.7× median
Tool-call failures1.2%0.6× median

Consumption

266.7B533.3B800.0B3 Oct17 Oct1 Nov
Peak 644.4B 6 OctLow 13.3B 1 NovRank today #76

News & trends

44 mentions this week ▲ 159%this model · videos, posts, articles · 30 days
Trending · 14 days
News

Benchmarks

bar = share of the top score · Benchmark data: Artificial Analysis
Terminal-Bench Hard#1 of 311
65.9%
Terminal-Bench 2.1#3 of 182
89.5%
GPQA Diamond#5 of 445
94.1%
Coding index#2 of 196
78.3
Long-context reasoning#8 of 393
84.0%
IFBench#42 of 328
72.7%
SciCode#19 of 160
57.8%
τ-Bench Banking#13 of 154
44.3%
Speed · median across 7 providers, latest day
Output speed#113/33485 tok/s1.3× faster than median
Fastest provider138 tok/sbest of 7 providers
First token#2341.6 s1.6× longer than median

#8 cheapest of 9 with a similar score

Value
Intelligence Index
4446485052$2$5$10$20GPT-5.6 Sol
Blended price per 1M tokens (log)

Technical details

Reasoning
on · medium
Tokenizer
GPT
Knowledge cutoff
2026-02-16
Moderation
moderated
Reasoning effort
  • max
  • xhigh
  • high
  • medium · default
  • low
  • none
Request parameters 11
  • tools
  • tool_choice
  • response_format
  • structured_outputs
  • reasoning
  • reasoning_effort
  • include_reasoning
  • max_tokens
  • max_completion_tokens
  • seed
+1 more
  • verbosity

Interesting facts

  1. Less output room than similar models (128.0K against a 289.0K median).
  2. Weekdays average 140.8B tokens a day against 80.2B on weekends.

When to use

Best for

  • Coding agents on large codebases
  • Terminal and command-line automation
  • Hard science and reasoning problems
  • Very long document analysis
  • Image and file understanding

Think twice for

  • Multi-hour autonomous agent runs
  • High-volume simple chat (cheaper options exist)
  • Self-hosting (closed weights)

Research papers

Same family

GPT-5 Sol

Alternatives

other vendors · similar capability

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