GPT-6 Sol
Newer version available: GPT-6.1 Sol
- Family
- GPT-6
- Released
- 2026-09-22
- Context
- 1.05M
- Max output
- 128K
- Knowledge cutoff
- 2026-04
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryRestricted
- Weights
- Not released
- Code
- Unknown
- Training
- Pretrained
Cheapest of 4 routes · OpenAI API · cache read $0.200
Cheapest of 4 routes · OpenAI API · cache read $0.200
About
OpenAI GPT-6 Sol, announced September 22, 2026 with GPT-6 Luna, expands the GPT-6 family below flagship GPT-6 Astra for cost-efficient complex coding and agentic workflows. First-party OpenAI API id gpt-6-sol. Docs: 1,050,000 context, 128,000 max output, knowledge cutoff Apr 20, 2026, text and image input to text output, reasoning effort none/low/medium/high/xhigh/max, function calling, structured outputs, prompt caching, Batch and Flex at 50% of Standard, Fast mode at 2x, and computer use and code interpreter via Responses tools.
Providers(4)
Compare all 4Compare API pricing across 4 tracked provider routes for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Batch in / out | Cache | Route |
|---|---|---|---|---|---|
| OpenAI API | $2.00 | $10.00 | $1.00 / $5.00 | read $0.200 | Serverless |
| AWS Bedrock | $2.00 | $10.00 | - | read $0.200 | Serverless |
| Azure OpenAI | $2.00 | $10.00 | - | read $0.200 | ServerlessProvisioned |
| OpenRouter | $2.00 | $10.00 | - | read $0.200 | Serverless |
Available via routers & gateways(17)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 500+ models from 80+ providers via a single OpenAI-compatible API, with an optional Auto Router that selects a model per prompt from market spend data.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, caching, and guardrails; MIT-licensed open-source core is self-hostable. Now part of Palo Alto Networks as Prisma AIRS AI Gateway.
AIRouter
RouterCommercial LLM router (branded "AI Router" on its site) that picks the best model per request via a Decision API or an OpenAI-compatible Chat Completions endpoint, with a private selection mode that routes on anonymized patterns; sold as BYOK subscription plans priced by routed tokens.
Amazon Bedrock Intelligent Prompt Routing
RouterAWS Bedrock's native prompt router that predicts each model's performance per request and routes between two models of the same family (Anthropic Claude, Meta Llama or Amazon Nova).
Azure AI Foundry Model Router
RouterMicrosoft Azure AI Foundry's native model router that uses a trained ML model to route each prompt in real time to the optimal Azure-hosted model, with Balanced/Cost/Quality mode selection and automatic failover.
Capabilities
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Benchmark scores(7)
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| 89.6 | ARC-AGI-2 semi-privateObserved 2026-10-01 | Configuration: gpt-6-sol (Max) Harness: ARC Prize semi-private evaluation Evaluator: ARC Prize Foundation Confidence: confirmed Notes: ARC Prize official leaderboard data (ARC-AGI-2 semi-private), verified in https://arcprize.org/media/data/leaderboard/v2.json (generatedAt 2026-10-01T18:51Z) for modelDisplayName 'GPT-6 Sol (Max)'. Highest-scoring published effort selected. Discovered via Benchmark Heaven / Epoch AI mirror (lead only). | ||
| 49.3 | FrontierCode 1.1 MainObserved 2026-10-05 | Configuration: gpt-6-sol (Max) Harness: codex Evaluator: Cognition Confidence: confirmed Notes: Cognition FrontierCode 1.1 Main (100 tasks) mean@5 composite ('new_score'), verified in https://cognition.com/data/frontiercode-leaderboard/data.json (the data file behind https://cognition.com/frontiercode), retrieved 2026-10-05. Agent harness: codex. Highest-scoring published effort selected; timestamp is retrieval date. | ||
| 90.0 | FrontierMath Tier 4 v2 (private)Observed 2026-09-22 | Configuration: gpt-6-sol (Max) Harness: Epoch AI FrontierMath Tier 4 v2 private set Evaluator: Epoch AI Confidence: confirmed Notes: Epoch AI-run evaluation (evaluator of record), from Epoch AI Benchmarking Hub data download https://epoch.ai/data/benchmark_data.zip (file frontiermath_tier_4_v2.csv, row 'gpt-6-sol_max', run started 2026-09-22). Epoch data is CC BY 4.0: credit 'Epoch AI, Capabilities & benchmarking, https://epoch.ai/benchmarks'. Highest-scoring Epoch configuration for this model selected; other configurations exist in the same file. Discovered via Benchmark Heaven (lead only). | ||
| 94.3 | diamondObserved 2026-09-22 | Configuration: gpt-6-sol (Max) Harness: Epoch AI Inspect harness (GPQA Diamond, 198 Q) Evaluator: Epoch AI Confidence: confirmed Notes: Epoch AI-run evaluation (evaluator of record), from Epoch AI Benchmarking Hub data download https://epoch.ai/data/benchmark_data.zip (file gpqa_diamond.csv, row 'gpt-6-sol_max', run started 2026-09-22). Epoch data is CC BY 4.0: credit 'Epoch AI, Capabilities & benchmarking, https://epoch.ai/benchmarks'. Highest-scoring Epoch configuration for this model selected; other configurations exist in the same file. Discovered via Benchmark Heaven (lead only). | ||
| 1266.0 | vision_style_control overall 2026-10-19 (style control, default view)Observed 2026-10-26 | Configuration: GPT-6 Sol (Max) Harness: LMArena blind pairwise human votes, Bradley-Terry Evaluator: LMArena Confidence: confirmed Notes: LMArena vision style control leaderboard, overall category, published 2026-10-19 (HF lmarena-ai/leaderboard-dataset @9761a3ce, latest split). Board entry 'GPT-6 Sol (Max)': rank 39, Arena Score 1266.0 (95% CI 1254.7-1277.4), 3221 votes. Retrieved 2026-10-26. | Source Source: LMArena (lmarena.ai), CC BY 4.0 | |
| 1459.0 | text_style_control overall 2026-10-22 (style control, default view)Observed 2026-10-26 | Configuration: GPT-6 Sol (Max) Harness: LMArena blind pairwise human votes, Bradley-Terry Evaluator: LMArena Confidence: confirmed Notes: LMArena text style control leaderboard, overall category, published 2026-10-22 (HF lmarena-ai/leaderboard-dataset @9761a3ce, latest split). Board entry 'GPT-6 Sol (Max)': rank 62, Arena Score 1459.0 (95% CI 1453.0-1465.1), 14707 votes. Retrieved 2026-10-26. | Source Source: LMArena (lmarena.ai), CC BY 4.0 | |
| 1377.0 | text creative_writing 2026-10-22Observed 2026-10-22 | Configuration: GPT-6 Sol (Max) Harness: LMArena blind pairwise human votes, Bradley-Terry Evaluator: LMArena Confidence: confirmed Notes: LMArena Text arena, Creative Writing category (no style control), board published 2026-10-22 (HF lmarena-ai/leaderboard-dataset @a467e6b9, text config, latest split). Board entry 'GPT-6 Sol (Max)' (category creative_writing in text/latest-00000-of-00001.parquet): rank 134 of 416, rating 1377.4 (95% CI 1365.9-1389.0), 3130 votes. Source: LMArena (CC BY 4.0). Retrieved 2026-10-27. | Source Source: LMArena (lmarena.ai), CC BY 4.0 |
Migration checks
No linked migration route is available for this model yet.
API versions
gpt-6-solGPT-6 Sol