Compare AI models
Side-by-side comparison of any two LLMs — GPT vs Claude, Gemini vs DeepSeek, open vs proprietary — on pricing, benchmarks, API availability, context window, and release date.
Decision builder
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Claude Sonnet 5.5 vs GPT-6.1 Sol
GPT-6.1 Sol is safer overall; choose Claude Sonnet 5.5 when vision-heavy evaluation matters.
- Output price
- $10.00 / $10.00
- Context
- 1M / 1.05M
- Benchmarks
- 3 shared
- Providers
- 5 / 3
Popular pairs
Browse comparisons with a decision signal attached
Claude Sonnet 5.5 vs GPT-6.1 Sol
GPT-6.1 Sol is safer overall; choose Claude Sonnet 5.5 when vision-heavy evaluation matters.
- Output price
- $10.00 / $10.00
- Context
- 1M / 1.05M
- Benchmarks
- 3 shared
- Providers
- 5 / 3
Claude Opus 5.5 vs GPT-6.1 Sol
GPT-6.1 Sol is ~100% cheaper at $2/1M; pay for Claude Opus 5.5 only for vision-heavy evaluation.
- Output price
- $20.00 / $10.00
- Context
- 1M / 1.05M
- Benchmarks
- 4 shared
- Providers
- 5 / 3
Claude Fable 5.1 vs GPT-6 Astra
Pick GPT-6 Astra for math; token pricing is tied, so keep Claude Fable 5.1 only for already-validated prompts or route constraints.
- Output price
- $50.00 / $50.00
- Context
- 1M / 1.05M
- Benchmarks
- 3 shared
- Providers
- 5 / 2
Claude Haiku 5.5 vs GPT-6 Luna
Pick Claude Haiku 5.5 for coding; token pricing is tied, so keep GPT-6 Luna only for already-validated prompts or route constraints.
- Output price
- $0.500 / $0.500
- Context
- 1M / 1.05M
- Benchmarks
- 1 shared
- Providers
- 6 / 4
Claude Sonnet 5 vs Claude Sonnet 5.5
Pick Claude Sonnet 5.5 for coding; token pricing is tied, so keep Claude Sonnet 5 only for already-validated prompts or route constraints.
- Output price
- $10.00 / $10.00
- Context
- 1M / 1M
- Benchmarks
- 11 shared
- Providers
- 6 / 5
Claude Opus 5 vs Claude Opus 5.5
Claude Opus 5.5 is safer overall; choose Claude Opus 5 when coding workflow support matters.
- Output price
- $25.00 / $20.00
- Context
- 1M / 1M
- Benchmarks
- 6 shared
- Providers
- 7 / 5
Claude Fable 5 vs Claude Fable 5.1
Pick Claude Fable 5 for coding; token pricing is tied, so keep Claude Fable 5.1 only for already-validated prompts or route constraints.
- Output price
- $50.00 / $50.00
- Context
- 1M / 1M
- Benchmarks
- 6 shared
- Providers
- 8 / 5
GPT-6 Sol vs GPT-6.1 Sol
GPT-6.1 Sol is safer overall; choose GPT-6 Sol when coding workflow support matters.
- Output price
- $10.00 / $10.00
- Context
- 1.05M / 1.05M
- Benchmarks
- 4 shared
- Providers
- 4 / 3
Kimi K3 vs Muse Spark Open
Muse Spark Open is ~140% cheaper at $1.25/1M; pay for Kimi K3 only for vision-heavy evaluation.
- Output price
- $15.00 / $4.25
- Context
- 1M / 1M
- Benchmarks
- 7 shared
- Providers
- 3 / 4
DeepSeek V4.1 Flash vs GPT-6 Luna
GPT-6 Luna is safer overall; choose DeepSeek V4.1 Flash when vision-heavy evaluation matters.
- Output price
- $0.600 / $0.500
- Context
- 1M / 1.05M
- Benchmarks
- 1 shared
- Providers
- 2 / 4
Kimi K3 vs Mistral Large 4
Mistral Large 4 is ~341% cheaper at $0.68/1M; pay for Kimi K3 only for reasoning depth.
- Output price
- $15.00 / $2.09
- Context
- 1M / 1M
- Benchmarks
- 2 shared
- Providers
- 3 / 3
Muse Spark Open vs Nemotron 3.5 Super VL
Muse Spark Open is safer overall; choose Nemotron 3.5 Super VL when vision-heavy evaluation matters.
- Output price
- $4.25 / Unpriced
- Context
- 1M / 1M
- Benchmarks
- 2 shared
- Providers
- 4 / 1
Claude Fable 5 vs Claude Opus 5
Choose Claude Opus 5 when you want the premium everyday route for complex coding, long-running agents, and enterprise analysis at half Fable 5's standard token price. Evaluate Claude Fable 5 when the highest available capability is worth the higher price and its access and safeguard profile fits the workload. Neither model is a universal winner: use setting-matched evaluations and test the provider route, latency, safety behavior, and task mix you actually plan to deploy.
- Output price
- $50.00 / $25.00
- Context
- 1M / 1M
- Benchmarks
- 6 shared
- Providers
- 8 / 7
Claude Fable 5 vs GPT-5.6 Sol
Pick GPT-5.6 Sol for a fully available OpenAI GA route with 1.05M context, lower standard output pricing at $30/M versus Fable 5's $50/M, and OpenAI launch rows you can cite directly in procurement reviews. Pick Claude Fable 5 when Anthropic's agentic coding evidence, adaptive thinking, and long-horizon workflow positioning outweigh access verification, especially after you confirm live Fable 5 availability on your provider route. Do not reuse GPT-5.6 Ultra multi-agent scores as single-model apples-to-apples results.
- Output price
- $50.00 / $20.00
- Context
- 1M / 1.05M
- Benchmarks
- 7 shared
- Providers
- 8 / 2
Gemini 3.5 Flash vs Gemini 3.6 Flash
Gemini 3.6 Flash is ~100% cheaper at $0.75/1M; pay for Gemini 3.5 Flash only for coding workflow support.
- Output price
- $9.00 / $3.75
- Context
- 1M / 1M
- Benchmarks
- 2 shared
- Providers
- 4 / 2
GPT-5.5 vs Qwen3.7-Max
Pick GPT-5.5 for terminal-heavy agents, tool orchestration, and multimodal workflows: it leads Terminal-Bench 2.0 at 82.7% versus 69.7% and supports image input. Pick Qwen3.7-Max when repository-scale coding and token cost matter more: it leads SWE-bench Pro at 60.6% versus 58.6%, and OpenRouter currently lists a 50% promotional rate of $1.25/M input and $3.75/M output. Treat Qwen3.7-Max pricing as freshness-sensitive because Alibaba's official pricing page did not list the 3.7 series at integration time.
- Output price
- $30.00 / $3.75
- Context
- 1.05M / 1M
- Benchmarks
- 9 shared
- Providers
- 5 / 4
DeepSeek V4 Pro vs GLM-5.1
No overall winner is assigned for this pair. Comparable benchmark rows are withheld because required row-level provenance is missing, and provider pricing remains pending a separate primary-source audit. Use the published 1M-token DeepSeek V4 Pro and 200K-token GLM-5.1 context limits plus tests of your exact deployment; do not infer a quality or cost winner from this page.
- Output price
- $0.870 / $4.40
- Context
- 1M / 200K
- Benchmarks
- No shared rows
- Providers
- 6 / 5
DeepSeek V4 Pro vs Kimi K2.6
Pick DeepSeek V4 Pro for pure code generation, large-codebase analysis, and the lowest per-token cost before its 75% discount expires on 2026-05-31. Pick Kimi K2.6 when your pipeline processes images, screenshots, PDFs, or spreadsheets, or when you need long agent runs with many sequential tool calls.
- Output price
- $0.870 / $3.40
- Context
- 1M / 256K
- Benchmarks
- 12 shared
- Providers
- 6 / 9
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