GPT-6 Astra vs GPT-6.1 Sol
At a Glance
| Compare |  GPT-6 AstraOpenAI | GPT-6.1 SolOpenAI |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v4.4 | #6 of 5784.6 score · 3/3 sources · complete | #5 of 5785.9 score · 3/3 sources · complete |
| CostLower is better · Published-token output estimate | #26 of 27$0.520 per LiveBench case | #15 of 27$0.104 per LiveBench case |
| EfficiencyHigher is better · MM Efficiency v1.9 | #18 of 2746.1 score · 3/3 sources · complete | #5 of 2760.1 score · 3/3 sources · complete |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $10.00Openai ↗ · Sep 4, 2026 | $2.00Openai ↗ · Sep 29, 2026 |
| Output priceFrom · USD / 1M tokens | $50.00Openai ↗ · Sep 4, 2026 | $10.00Openai ↗ · Sep 29, 2026 |
| Context windowMaximum documented tokens | 1,050K | 1,050K |
| Model facts checked | Sep 4, 2026View model evidence → | Sep 29, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | GPT-6 Astra | GPT-6.1 Sol |
|---|---|---|
| ARC-AGI-1verified-v1-613c385b0c93 · verified_score · statistical tie | 98.50100% of row best · percent · GPT-6 Astra (XHigh) | 98.50100% of row best · percent · GPT-6.1 Sol (XHigh) |
| ARC-AGI-2verified-v2-be40992860f9 · verified_score · leader | 95.00100% of row best · percent · GPT-6 Astra (Max) | 94.1799% of row best · percent · GPT-6.1 Sol (Max) |
| LMArena Search Arenasearch-2026-10-13-a64ca3b12b6e · arena_rating · statistical tie | 1,233.62100% of row best · rating · gpt-6-astra-max; 95% CI [1225.77363708, 1241.45798456]; votes 18483; rank 7 | 1,233.10100% of row best · rating · gpt-6.1-sol-max; 95% CI [1224.24145466, 1241.96324521]; votes 5555; rank 8 |
| LMArena Text Arenatext-2026-10-15-a64ca3b12b6e · arena_rating · statistical tie | 1,442.69100% of row best · rating · gpt-6-astra-max; 95% CI [1436.40189535, 1448.98654490]; votes 12163; rank 69 | 1,447.67100% of row best · rating · gpt-6.1-sol-max; 95% CI [1439.59979847, 1455.74908604]; votes 6320; rank 57 |
| LMArena Vision Arenavision-2026-10-09-a64ca3b12b6e · arena_rating · statistical tie | 1,281.3599% of row best · rating · gpt-6-astra-max; 95% CI [1270.63592513, 1292.07239183]; votes 3590; rank 36 | 1,288.19100% of row best · rating · gpt-6.1-sol-max; 95% CI [1273.83724449, 1302.54208160]; votes 1813; rank 30 |
| LiveBench2026-06-25-90f8d44da965 · overall · leader | 86.47100% of row best · percent · gpt-6-astra-max · 10,407 output tokens / case | 86.14100% of row best · percent · gpt-6.1-sol-max · 10,375 output tokens / case |
| ToneBench2026-10-17-10-task-e9c76358afb2 · overall_score · unverified | 82.32100% of row best · points · GPT-6 Astra (max) · 20,449 output tokens / case | 82.44100% of row best · points · GPT-6.1 Sol (max) · 21,221 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above · 4 ties | 2 benchmark winsOverall lead | 0 benchmark wins |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Quality Versus Estimated Output Cost
Side-by-Side Facts
| Field | GPT-6 Astra | GPT-6.1 Sol |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Family | Gpt 6 | Gpt 6 |
| Model | GPT-6 Astra | GPT-6.1 Sol |
| Version | GPT-6 Astra | GPT-6.1 Sol |
| Lifecycle | active | active |
| Released | 2026-09-03 | 2026-09-29 |
| Knowledge cutoff | 2026-04-30 | 2026-04-30 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,050K | 1,050K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Openai (Standard), Openrouter (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, computer-use, generation, reasoning, research, tools | chat, computer-use, generation, reasoning, tools |
| Data residency | Unknown | US, EU |
| Default snapshot | Unknown | gpt-6.1-sol |
| Maximum input tokens | Unknown | 922000 |
| Multi-agent | Unknown | Responses API beta |
| Reasoning effort | Unknown | low, medium, high, xhigh, max |
| Regional processing premium | Unknown | 10% where available |
| Supported API routes | Unknown | v1/responses, v1/chat/completions, v1/batch |
| Supported tools | Unknown | web_search, file_search, image_generation, code_interpreter, hosted_shell, apply_patch, skills, computer_use, mcp, tool_search |
| Tier 1 rate limits | Unknown | 500 RPM; 500,000 TPM |
| Tier 2 rate limits | Unknown | 5,000 RPM; 1,000,000 TPM |
| Tier 3 rate limits | Unknown | 5,000 RPM; 2,000,000 TPM |
| Tier 4 rate limits | Unknown | 10,000 RPM; 4,000,000 TPM |
| Tier 5 rate limits | Unknown | 15,000 RPM; 40,000,000 TPM |
| Tool calling route | Unknown | Responses API only |
GPT-6 Astra Capabilities
GPT-6.1 Sol Capabilities
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Primary Evidence
Sources and Freshness
Questions
GPT-6 Astra vs GPT-6.1 Sol FAQs
Is GPT-6 Astra or GPT-6.1 Sol better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both GPT-6 Astra and GPT-6.1 Sol, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, GPT-6 Astra or GPT-6.1 Sol?+
GPT-6 Astra is $10.00 and GPT-6.1 Sol is $2.00 per million tokens, so GPT-6.1 Sol is cheaper on this metric. GPT-6 Astra is $50.00 and GPT-6.1 Sol is $10.00 per million tokens, so GPT-6.1 Sol is cheaper on this metric.
Which has a larger context window, GPT-6 Astra or GPT-6.1 Sol?+
Both models have the same sourced context window: 1,050,000 tokens each.
Which performs better in benchmarks, GPT-6 Astra or GPT-6.1 Sol?+
GPT-6 Astra leads the current overall benchmark count. The result uses 6 protocol-matched benchmarks from 3 publishers; it is not a universal quality score.
Can GPT-6 Astra or GPT-6.1 Sol be self-hosted?+
Both models have the same sourced self-hosting status: unsupported. GPT-6 Astra is not marked open weight; GPT-6.1 Sol is not marked open weight.
Can GPT-6 Astra and GPT-6.1 Sol understand images?+
GPT-6 Astra is documented with image input; GPT-6.1 Sol is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, GPT-6 Astra or GPT-6.1 Sol?+
Both models have the same sourced maximum output: 128,000 tokens each.
Do GPT-6 Astra and GPT-6.1 Sol support reasoning and tool use?+
GPT-6 Astra: reasoning, tool calling, and image input. GPT-6.1 Sol: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, GPT-6 Astra or GPT-6.1 Sol?+
GPT-6 Astra has 2 sourced provider routes; GPT-6.1 Sol has 2, a tie.
Which offers better value, GPT-6 Astra or GPT-6.1 Sol?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.