Models/OpenAI/GPT-6.1 Sol

GPT-6.1 Sol

GPT-6.1 Sol is OpenAI’s upgrade to GPT-6 Sol for complex coding and agentic workflows, with near GPT-6 Astra intelligence at Sol prices. Continuum hosts gpt-6.1-sol.

01

Identity

1,050,000Context in
128,000Context out
2026-09-29Released
ProprietaryWeights
Canonical name
GPT-6.1 Sol
Aliases
gpt-6.1-sol, continuum/gpt-6.1-sol
Continuum hosted id
gpt-6.1-sol
OpenRouter slug
Not on the 2026-08-19 OpenRouter catalog
Hugging Face
None (closed or unpublished)
Modalities
text, image
Plan mapping
Codex with ChatGPT sign-in serves it from Codex CLI 0.159.2. Pin with codex -m gpt-6.1-sol. Continuum also serves it on the hosted lane. See Codex models.
Closed weights Hosted on Continuum Vendor lab

The API id is gpt-6.1-sol. Continuum uses the bare id at the gateway and continuum/gpt-6.1-sol in cross-provider pickers.

The input context is 1,050,000 tokens and maximum output is 128,000 tokens. Input is text and images; output is text.

Reasoning effort on the API is low, medium, high, xhigh, or max, with medium as the default. Continuum exposes low through max.

OpenAI positions it as an upgrade to GPT-6 Sol with near-Astra intelligence on agentic coding, computer use, and professional work.

02

Should I use this for coding agents

Use GPT-6.1 Sol for multi-step coding and agent work on the OpenAI side when GPT-6 Astra would cost more than the task needs. It keeps Sol’s $2/$10 rate card with cache reads halved to $0.10.

No independent row for this SKU

No independent board lists this exact SKU as of 2026-08-19.

Closest benchmarked sibling: GPT-5.6 Sol, 73% ±3% Pass@1 at max on the DeepSWE official board. That is a score for the sibling, not for this SKU.

Boards checked: DeepSWE official (2026-08-13), Artificial Analysis Intelligence Index, vals.ai hero index. Every card that does carry a row is on the coding leaderboard.

DeepSWE

No official DeepSWE mini-swe-agent row for this identity on the public board we fetched.

omitted, not invented as of 2026-08-13 source
Artificial Analysis

No Intelligence Index integer fetched for this identity. Chip omitted.

omitted, not invented as of 2026-08-19 source
Vals Index

We did not open a vals.ai card for this identity. Chip omitted.

omitted, not invented as of 2026-08-19 source
03

When not to use it

Trust this before you buy

  • No independent coding board has a GPT-6.1 Sol row yet, so this card carries no DeepSWE, Artificial Analysis, or vals.ai chip. Judge it on your own tasks.
  • Requests over 272K prompt tokens bill the whole request at 2x input and cache rates and 1.5x output.
  • Closed weights. No local checkpoint and no official GGUF.

Get Plus to use the Continuum-hosted GPT-6.1 Sol rail. Not a Mac download.

04

Artifact

Weights

OpenAI does not publish GPT-6.1 Sol weights. No HF Files button. Get Plus is hosted inference.

  • OpenRouter, read 30 Sep 2026: $2 input / $0.10 cached input / $2.50 cache write / $10 output per million, 1,050,000 context, 128,000 output.
  • Long-context rule: above 272K prompt-input tokens the whole request bills at 2x input and cache rates and 1.5x output, which is $4 input and $15 output per million.

What you can open

Lab card and OpenRouter listing only. No Hugging Face Files button, because there is no official repo to point at.

Fetched OpenRouter catalog on 2026-08-19. hugging_face_id was empty.

05

Continuum serving

Continuum hosts gpt-6.1-sol on the hosted lane, and it is available through your own Codex subscription (Codex CLI 0.159.2 or later on a ChatGPT account).

Continuum hosted id gpt-6.1-sol

click to select

We list first-party and OpenRouter, plus Continuum only when the live public allowlist named the id. This is not a 15-host routing table.

06

Economics

Official pricing per million tokens: $2 input, $10 output, $0.10 cached input, and $2.50 cache write.

Price this model Opens the pricing calculator preloaded with GPT-6.1 Sol.
07

Provenance

ClaimSourceAs of
API id, $2 / $0.10 cached / $2.50 cache write / $10 out, 1.05M context, 128K outputOpenRouter GPT-6.1 Sol2026-09-30
272K request-wide surcharge at 2x input/cache and 1.5x output, effort levels, modalitiesOpenAI GPT-6.1 Sol model page2026-09-30
No base OpenRouter slug on the 2026-08-19 catalog; Hugging Face unlistedOpenRouter /api/v1/models2026-08-19
08

Compare, FAQ, and Get Plus

Same official DeepSWE harness (mini-swe-agent, public 113 tasks), fetched 2026-08-19. Different effort labels are the lab's own setting on that board, shown here rather than normalized.

Continue through OpenAI's model family with GPT-6 Sol.

FAQ

Is GPT-6.1 Sol the same model as GPT-6 Sol?

No. They are separate ids with separate cache prices. gpt-6.1-sol and gpt-6-sol are both listed, and the bare sol shorthand on this site still means GPT-5.6 Sol.

Why does the lab blog disagree with DeepSWE or Scale?

Lab posts pick a harness, an effort, a split, and sometimes a private eval set. DeepSWE publishes the official mini-swe-agent row with cost, tokens, and steps. Scale SWE-bench Pro only counts when the public shared-harness board has a row we can fetch. A higher lab number is usually a different test, not a better one.

OpenAI-compatible call

Verified against the live public allowlist on 2026-08-19. Base URL is https://continuumcode.ai/v1. Keys are cont_sk_ from Settings, Account, Inference API. Personal keys need Plus or above.

curl https://continuumcode.ai/v1/chat/completions \
  -H "Authorization: Bearer $CONTINUUM_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-6.1-sol","messages":[{"role":"user","content":"Review this diff."}]}'

Get Plus to use the Continuum-hosted GPT-6.1 Sol rail. Not a Mac download.