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GPT-6 Sol

ActiveOpenAIopenai/gpt-6-sol3 platforms

No shutdown before this date. GPT-6 Sol stays on Amazon Bedrock until at least Sep 22, 2027.

≥ 11 mo
Earliest retirement
≥ 343 daysSep 22, 2027 · Amazon Bedrock
Arena Text
1,456#36 of 128 · Arena
GPQA Diamond
94.3%#9 of 108 · Epoch AI
List price · $ per 1M
$2.00 in $10.00 outOpenAI API · cached input $0.20
Context window
1.1MMax output 128K tokens

Dates on every platform

3 listings · a floor is the earliest possible date
GPT-6 Sol on each platform: model ID, status, dates, replacement and source
PlatformModel ID and statusDeprecatedShuts downReplacement
OpenAI APIOpenAI: List models (GET /v1/models) (opens in a new tab) · checked Oct 14, 2026gpt-6-solActive–None set–
Azure AI FoundryMicrosoft: Foundry Models sold by Azure (opens in a new tab) · checked Oct 14, 2026gpt-6-sol:2026-09-22Active–None set–
Amazon BedrockAmazon Web Services: Amazon Bedrock ListFoundationModels, us-east-1 (opens in a new tab) · checked Oct 14, 2026openai.gpt-6-solActive–Not sooner than–

In us-east-1, requests go through a cross-Region inference profile (listed in aliases).

What breaks when you move off GPT-6 Sol

  • Behavior

    Results on image inputs change without a model ID change. OpenAI recommends rerunning evaluations and retrying workflows affected by the issue.

    GPT-6 Sol, GPT-6 Luna · OpenAI API ·

  • Parameters

    When reasoning effort is not none, remove temperature, top_p and top_logprobs. Chat Completions requests must also drop logprobs.

    GPT-6 Sol, GPT-6 Luna · OpenAI API ·

  • Tooling

    GPT-6 Sol and GPT-6 Luna support function calling in Chat Completions only with reasoning_effort none. Use the Responses API for reasoning with tools.

    GPT-6 Sol, GPT-6 Luna · OpenAI API ·

Intelligence

Third-party results, credited below
Third-party benchmark scores for GPT-6 Sol
BenchmarkPublisherScoreRankPublished
Arena TextArena1,456 ± 3#36 of 128Oct 8, 2026
GPQA DiamondEpoch AI94.3% ± 1.5%#9 of 108Sep 22, 2026
Arena WebDevArena1,688 ± 6#7 of 69Oct 8, 2026
Arena AgentArena0 ± 0#3 of 35Oct 12, 2026
FrontierMath Tier 4Epoch AI90.0% ± 5.2%#5 of 58Sep 22, 2026
FrontierMath Tiers 1-3Epoch AI89.8% ± 1.8%#5 of 71Sep 22, 2026
OTIS Mock AIME 2024-2025Epoch AI100.0% ± 0.0%#7 of 105Sep 22, 2026
SimpleQA VerifiedEpoch AI60.7% ± 1.5%#15 of 68Sep 22, 2026

Arena (arena.ai), https://arena.ai/leaderboard

Epoch AI, ‘Capabilities & benchmarking’. Published online at epoch.ai. Retrieved from ‘https://epoch.ai/benchmarks’ [online resource].

List prices

$ per 1M tokens, with each price’s source
List prices per 1M tokens, in US dollars
PlatformInputCachedOutputIn effectSource
OpenAI APIgpt-6-sol$2.00$0.20$10.00Sep 22, 2026Current · Requests over 272K input tokens are billed at higher long-context rates. Cache writes are billed separately. Batch and Flex bill less; Fast mode bills more.OpenAI: Pricing (opens in a new tab)
Azure AI Foundrygpt-6-sol:2026-09-22$2.00$0.20$10.00Sep 22, 2026Current · Global Standard short-context rate from the US East 2 price list.Microsoft: Azure Retail Prices API (Foundry Models, US East 2) (opens in a new tab)
Amazon Bedrockopenai.gpt-6-sol$2.20$0.22$11.00Oct 14, 2026Current · Standard tier, short context (272K input tokens or fewer). Mantle in-Region and US geographic cross-Region inference; global cross-Region inference is priced lower.Amazon Web Services: Amazon Bedrock model card: GPT-6 Sol (opens in a new tab)

Change history

API changeImage encoding fix changes GPT-6 Sol and Luna image resultsOpenAI API1 break

OpenAI fixed a bug in image encoding that degraded image understanding in GPT-6 Sol and GPT-6 Luna, in the API and Codex, including computer use.

Platform
OpenAI API
  • BehaviorResults on image inputs change without a model ID change. OpenAI recommends rerunning evaluations and retrying workflows affected by the issue.

Source: OpenAI, Changelog (opens in a new tab)

ReleaseGPT-6 Luna and GPT-6 Sol available on Amazon BedrockAmazon Bedrock

Bedrock added GPT-6 Luna and GPT-6 Sol.

Platform
Amazon Bedrock

Source: Amazon Web Services, Amazon Bedrock ListFoundationModels, us-east-1 (opens in a new tab)

ReleaseGPT-6 Sol and GPT-6 Luna available on Azure AI FoundryAzure AI Foundry

Microsoft added GPT-6 Sol and GPT-6 Luna to the generally available lineup in Foundry. Standard deployments are available in Global regions and US and EU Data Zones, and Provisioned Throughput is offered for Astra and Sol.

Platform
Azure AI Foundry

Source: Microsoft, GPT-6 Astra, Sol, and Luna in Microsoft Foundry (opens in a new tab)

ReleaseGPT-6 Sol and GPT-6 Luna released on the OpenAI APIOpenAI API2 breaks

OpenAI released GPT-6 Sol and GPT-6 Luna, reasoning models that take text and image input and return text, in the Responses and Chat Completions APIs.

Platform
OpenAI API
  • ParametersWhen reasoning effort is not none, remove temperature, top_p and top_logprobs. Chat Completions requests must also drop logprobs.
  • ToolingGPT-6 Sol and GPT-6 Luna support function calling in Chat Completions only with reasoning_effort none. Use the Responses API for reasoning with tools.

Source: OpenAI, Changelog (opens in a new tab); OpenAI, Using GPT-6 (opens in a new tab)

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