Sponsored byFusecodeEnterprise coding API for Claude Code, Codex, and model workflows.

Free
Models
Providers
Docs

Home
Models
Gpt 5.6 Sol

LMSpeed

The best API speed test tool

GitHub Twitter Email

Product

Features
Pricing
FAQ

Leaderboard

Overview
Speed Ranking
Latency Ranking
Health Ranking
Model Pricing
Model Speed
Reasoning
Coding

Models

All Models
GPT
Claude
Gemini
DeepSeek
Llama
Qwen

Free Models

All Free Models
Free GPT
Free Claude
Free Gemini
Free DeepSeek
Free Llama
Free Qwen

Tools

Speed Test
Provider Audit

Resources

Provider Directory
Documentation
GEO Checker
Viora
Botab
VidBee

Legal

Cookie Policy
Privacy Policy
Terms of Service

© 2026 LMSpeed All Rights Reserved.Made by Nexmoe with ❤️

GPT-5.6 Sol API Pricing & Benchmarks | LMSpeed

OpenAI

GPT-5.6 Sol API Benchmarks, Pricing & Provider Data

LLM

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....

Specifications

Input and output token limits for this model, plus how it ranks on long-context understanding.

INPUT

1.1Mtokens

≈ 1.3K pages of text

OUTPUT

128Ktokens

8K128K1M4M

1.1M

Features

Technical Details

Input

Alternatives & Similar Models

Also known as

gpt-5.6-sol

Build with LMSpeed Data

Free

Free public API for LLM pricing, benchmarks & provider data

Real-time pricing & availability

Speed & latency benchmarks

300+ models, 600+ providers

1,000 requests/day

View API Documentation

Output

Knowledge cutoff

2026-02-16

Documentation

Tokenizer

GPT

Architecture

text+image+file->text

Moderated

Yes

Supported parameters

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

GPT-5.4

gpt-5-4

OpenAI GPT-5.4 extends the GPT-5 family with stronger instruction following, deeper tool use, and improved performance on coding, math, and long-document analysis.

3 shared providers

GPT-5.3 Codex

gpt-5-3-codex

OpenAI GPT-5.3 Codex is a code-specialized variant in the GPT-5 series, optimized for code generation, debugging, and software development tasks.

3 shared providers

GPT-5.2

gpt-5-2

OpenAI GPT-5.2 is a GPT-5 series model emphasizing advanced reasoning, multimodal understanding, and high-quality outputs for complex enterprise workloads.

3 shared providers

GPT-5.4 Mini

gpt-5-4-mini

OpenAI GPT-5.4 Mini is a compact language model in the GPT-5 series, optimized for quick responses and high throughput.

3 shared providers

Claude Opus 4.6

claude-opus-4-6

Anthropic Claude Opus 4.6 is the most capable Claude Opus tier, optimized for complex analysis, long-horizon coding, and high-stakes enterprise reasoning workloads.

3 shared providers

Claude Sonnet 4.6

claude-sonnet-4-6

Anthropic Claude Sonnet 4.6 extends the Sonnet line with improved tool use, coding reliability, and long-context performance for everyday production workloads.

3 shared providers

Data as of Jul 10, 2026, 05:09 AMRankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.Standard benchmark data may include BenchLM and other public sources.