Engineering01
Ship features
Plan and write changes across a codebase, then fix the tests.
Now in early accessGPT-6 preview
The next generation
of ChatGPT is here.
ChatGPT-6 is a next-generation assistant built for real work — deep reasoning, whole-codebase coding, long-running agents and vision. Open it in your browser and start in seconds.
No signup · No app · No card
400K
token context
99.9%
uptime
$0
to use
ChatGPT‑6Live
Refactor this module and add tests.
Done — here's a cleaner version with a small helper and unit tests:
def greet(name):
return f"Hi, {name}!"
return f"Hi, {name}!"
Message ChatGPT-6…
ReasoningCodingAgentic workLong contextVisionTool callingStructured outputMultilingualFast answersReasoningCodingAgentic workLong contextVisionTool callingStructured outputMultilingualFast answers
ICapabilities
One model, every job
A next-gen engine for real work.
ChatGPT-6 pairs frontier reasoning with a large context window and native tool use — the same intelligence behind serious coding and agentic workflows.
Deep reasoning
Step-by-step thinking for math, logic and multi-constraint problems that trip up smaller models.
01Coding
Reads whole codebases, plans changes across files and iterates on failures until it works.
02Agentic workflows
Built for sustained, multi-step tasks with tool calling and reliable execution.
03Long context
Drop in entire files, docs or threads and keep the whole picture in view — up to 400K tokens.
04Vision
Understands screenshots, diagrams, charts and photos alongside your text.
05Structured output
Clean JSON and schema-constrained responses for production pipelines.
06IIUse cases
What people do with it
From a quick question to a full engineering run.
Research02
Dig deep
Reason over long documents and synthesise clear, sourced answers.
Agents03
Automate
Drive multi-step tool workflows that run all the way to done.
Analysis04
Make sense of data
Turn messy inputs into structured, actionable output.
Writing05
Draft & edit
Long-form writing with a consistent, context-aware voice.
Vision06
Read the screen
Explain screenshots, diagrams and UI mockups in context.
IIIPerformance
Numbers, not adjectives
Next-gen quality, always on.
Responses stream back in real time from a dedicated provider — no queue, no routing guesswork, healthy failover.
400K
Context window
tokens in a single conversation
58 tps
Throughput
median tokens per second
1.9s
Latency
median time to first token
99.9%
Uptime
monitored continuously
IVComparison
How it stacks up
Frontier class. Zero price.
How ChatGPT-6 lines up against today's leading models on the things that matter — with one column no one else can match.
| Model | Context | Intelligence | Vision | Tools & agents | Price / 1M | Free |
|---|---|---|---|---|---|---|
ChatGPT-6This one | 400K | 71* | $0 | |||
GPT-5.6 Sol | 400K | 67 | $10 | |||
Claude Opus 5 | 1M | 68 | $25 | |||
Gemini 3.7 Pro | 2M | 66 | $10 | |||
Grok 4.6 | 500K | 65 | $6 | |||
Llama 4.2 405B | 256K | 60 | $3.50 |
Indicative figures from public benchmarks (Artificial Analysis Intelligence Index, SWE-bench) as of September 2026. ChatGPT-6 is in early-access preview — its score (*) is a community-reported estimate. Competitor prices are per 1M output tokens; Intelligence is the Artificial Analysis Intelligence Index.
VIn the wild
Built for demanding workloads
The kind of work it handles.
ChatGPT-6 is tuned for high-volume, high-stakes tasks — a good signal for what it can do for you.
01Multi-step
Autonomous agents
Agents with memory, tools and browser automation that run to completion.
02Repo-scale
Coding assistants
Tools that read your codebase and execute changes across files.
03400K ctx
Research copilots
Long-context synthesis over large document sets.
04Reliable JSON
Production pipelines
Structured, schema-constrained output at scale.
VIPricing
The simplest plan there is
Free. Actually free.
During early access, every message to ChatGPT-6 is free — no card, no quotas to worry about.
Free
★Everything, right now
$0/mo
- Unlimited messages
- Full 400K token context
- Reasoning, coding & vision
- No signup, no app
- Markdown & code rendering
Pro
For teams — coming soon
Soon
- Everything in Free
- Higher priority responses
- API access
- Team workspaces
- Usage analytics
VIIEverywhere
Runs in your browser.
No install, no extension. Open the chat on any device and start.
Web
Mobile web
API (soon)
VIIISignal
Early reactions
What people are saying.
“Handed it a gnarly refactor across a dozen files and it just… did it. Free is wild.”
A
Alex
@alex_dev · Sep 1
“The long context is the real deal — I dropped a whole spec in and it kept everything straight.”
M
Marina
@marina_ml · Sep 1
“Fast enough for agent loops, and it's free. It's my default now.”
K
Ken
@kenbuilds · Sep 2
“Reasoning quality feels a clear step up. No login, opened it and went.”
S
Sofia
@sofia_writes · Sep 2
IXReference
Questions, answered.
ChatGPT-6 is a next-generation GPT-class assistant designed for advanced reasoning, coding and agentic work, with a large context window and multimodal (text + vision) input. This site is a free, no-login way to chat with it.
Yes. During early access every message is free — no card and no signup required to start chatting.
No. ChatGPT-6 runs in your browser. Just open the chat and type.
Up to 400,000 tokens in a single conversation — enough for large files, long documents and extended threads.
Yes. ChatGPT-6 is strong at multi-file coding, tool calling and schema-constrained structured output, which is why it fits agentic and production workflows.
ChatGPT-6 is multilingual and this site is available in 18 languages. Chat in whatever language you prefer.
Ready when you are.
Open the chat and put a next-generation model to work — free, no strings.
Start chatting freeNo signup · No card